New carbs??..

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LOL! What's not to love about two large polished aluminum boxes on top of a tunnel ram that sound like a pair Dominators?
 
j par said:
LOL I think they're crap but I don't mind J peg using them LOL and it's back to jpeg now huh I'll consider you officially back now...
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Don't get me wrong, they can be a good running carb. They just aren't my preference for performance. Neither are your eddies...LOL. Jpeg, Jpar, what's the diff? Semi back, have some things worked out, still busy. Still no time for Facebook drama.... I offered u a carb, should u decide :).
 
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318willrun said:
Don't get me wrong, they can be a good running carb. They just aren't my preference for performance. Neither are your eddies...LOL. Jpeg, Jpar, what's the diff? Semi back, have some things worked out, still busy. Still no time for Facebook drama.... I offered u a carb, should u decide :).
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first and foremost thank you for the offer of the carburetor that's totally cool! Not sure which direction I absolutely want to go but that Street Demon sure does look cool.. I think two brand-new Chrome ones would look awesome sticking up out of the hood!??.. and what's Facebook LOL...
Noticed I haven't called you your nickname once...
 
IMO, sell what you have and roll it over into the pair of carbs you want to try out. If I was going the non Holley route, which would be my flavor as well, the carb style I’d prefer to run would be an adjustable secondary air door like the AVS, AVS II or the Street Demon.
 
After 318willruns generous offer and another members mind blowing offer my day yesterday continued to be blessed!!..
Leaving me with a small budget for new carbs... Also a good little amount of work in the near future... Soooo my eyes are really looking towards the street demon..
$288 each is the best I can find and after a couple of days of work I should be able to afford that, but as always I would like to find someone to sell them cheaper LOL.. of course speed master has some carbs but these Street demons look so awesome and as I researched them I do like the way they operate.. Edelbrock Holly and Demon Parts on a thermoquad theory... I do like the idea of the composite Center and the cooling effects, but I find no overheating of my carburetors sitting on top of a tunnel ram... For the looks of the shiny ones.. in my research I hear people talking about the composite warping but that maybe the old composite compared to what kind they have now?.. again I don't even know if it's needed in my application...
 
I may be wrong but on a tunnel ram outside the hood, I'd say hot fuel in the bowls should not really be an issue!

Cley
 
The old TQ bowl warpage issue is/was real due to the increase heat generated by the engines for emissions purposes. I’ve had a bowl crack on me. The engine was still stock at the time. After a few changed parts, a cooler thermostat being one of them, I never had a problem since.

I haven’t heard/read any issues with the composite center of the street demon. The only complaint is removing the carb in full to access the attaching hardware under the carb in order to tune the carb.

That would drive me nuts.
 
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Cudafever said:
ok so the avs-2 are a little price..........but here's a couple of links

AVS2 Carburetor #1902 500 CFM With Manual Choke, Satin Finish (Non-EGR)

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He's going to want the 1904 set up for dual quads.

Edit:
Never mind unless he's willing to sell some hoarded parts, like a NOS 68 fastback window trim. They are out of the project budget.

Also, @j par, what do you get out of the straight linkage? Plusses and minuses I saw that you've run both and prefer the straight.

Thanks in advance man.
 
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Ottmundr said:
He's going to want the 1904 set up for dual quads.

Edit:
Never mind unless he's willing to sell some hoarded parts, like a NOS 68 fastback window trim. They are out of the project budget.

Also, @j par, what do you get out of the straight linkage? Plusses and minuses I saw that you've run both and prefer the straight.

Thanks in advance man.
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Working got to get back to you in a few hours
 
Direct 1-1 on TR’s. IMO, it’s the only way to do it.
Ether way, 1-1 or progressive on a dual plane.
 
I run two 69 340 avs carbs on my edelbrock street TR. Runs very smooth and performs very well. I had two holley 600s and they sucked. couldn't get the backs tuned in. They either bogged or didn't open couldn't fined the right combo.
 
The OE carbs are better than the Edelbrock carbs.
The OE AVS carbs rule!!!!!!
Trouble is now finding two of the same model in good shape.
 
Ottmundr said:
He's going to want the 1904 set up for dual quads.

Edit:
Never mind unless he's willing to sell some hoarded parts, like a NOS 68 fastback window trim. They are out of the project budget.

Also, @j par, what do you get out of the straight linkage? Plusses and minuses I saw that you've run both and prefer the straight.

Thanks in advance man.
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I think the advantage of having a straight linkage is much more cost-efficient and ease of installationis as opposed to carburetors sideways and having all kinds of connections going in different directions and more money and takes a little skill to get hooked up correctly..
 
The advantage for having them hooked up 1 to 1 where both of them open up at the same time is much better throttle response. The disadvantage is it a little harder to get control of as the spring pressure is doubled on your gas pedal and makes it tough to feather easily on the street..
Hooked up Progressive you generally have about a third of the throttle on your first carburetor and then the second one kicks in and picks up pace in order to reach full throttle at the same time with the initial carburetor. Of course when you're working on that first third of a throttle you're only pulling on one carburetor so your pedals softer and easier to manage and it's less abrupt..
you can feel when you've made it to the second carburetor because now you're pulling the tension of 2 carburetor Springs with your gas pedal. It feels a little bit like the turbos kicking in right when you feel that second spring start pulling sort of the back tire lol....
Once I got used to the heavy pull of two carburetor Springs at once I enjoy the more crisp response of the gas pedal..
 
89on35s said:
I may be wrong but on a tunnel ram outside the hood, I'd say hot fuel in the bowls should not really be an issue!

Cley
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yes for this reason if I'm able to pull the trigger on the two new demons I would just get the full Chrome ones..:thumbsup:..
maybe a couple stacked up 3 inch Riser plate so they're fully out of the hood and Shining in the Wind..:thumbsup:..
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Garrett Ellison said:
Here is the science behind typical tunnel rams operating better with a direct rather than a progressive linkage, down in the tunnel ram section. Intake Manifold Comments
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I only read a little of that link you posted. When I find at least 2 errors in the first two sections I punt.

There is ZERO reason for a TR to have throttle response better than anything else (it should) and it should idle better than anything else and posting the same carb CFM selection math is just dumb. That formula was wrong when it was written, and it's wrong now. Nothing has changed.
 
yellow rose said:
I only read a little of that link you posted. When I find at least 2 errors in the first two sections I punt.

There is ZERO reason for a TR to have throttle response better than anything else (it should) and it should idle better than anything else and posting the same carb CFM selection math is just dumb. That formula was wrong when it was written, and it's wrong now. Nothing has changed.
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I'm ready for my cheeseburger on Wednesday again!..
 
318willrun said:
I have a 1850 Holley that came off a running vehicle about 4 yrs ago. If you are interested, they are dirt cheap to find, so if you find another, let me know.
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I'm firmly decided I want two brand new carburetors.. everything on the entire engine is brand new or was brand new when I first started it. Or brand new when I put it on. Except for the front carburetor that came with the car on the 318 and the back carburetor someone gave me as scrap metal.. I'm no longer interested in finding one that matches as you know and this quote isn't anything to do with your extremely generous offer but just to let you know where I'm at in my head. I just picture two brand new carburetors on my tunnel ram feeding my two brand-new heads. Yes I paid the money to have the bottom end done right so I could play with everything else..
At 288 a piece for those demons I'm not sieeng an extremely better option. But I'm quoting you because I know you like Holleys and all that. and I know you would give me a good argument why not to do the demons.. please think brand new as in no gas has ever been through them before...
Thank you...
 
If i was spending your money it would still be the AVS-2 Even though it's the most expensive option. Other than a pair of double pumpers with new linkage.
 
Autozone sometimes has those 20% off sales, at that discount the AVS2 carbs drop down to $268 each. Unless you're in California, then they don't sell you anything, especially plastic straws.

hi-im-ricky-bobby-and-if-you-shop-at-autozone-then-****-you.jpg
 
Ottmundr said:
Autozone sometimes has those 20% off sales, at that discount the AVS2 carbs drop down to $268 each. Unless you're in California, then they don't sell you anything, especially plastic straws.

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Offer not valid on performance carburetors like Holly Edelbrock blah blah blah... thanks for trying though that's kind of what I'm looking for if I'm going to go for this I would like to see about a discount. Everybody is saying 288.86 it's almost like a damn Monopoly...
 
The takeaway from the article posted, ignoring the CFM calculation formula, which I agree upon being incorrect. But the reason why TR's work best with 1:1 linkage.
"Some degree of separation between the front (#1, 2, 3 & 4) and rear (#5, 6, 7 & 8) cylinder groups occurs, due to the relatively small area of the plenum between the 2 carburetor mounting points."
 
You can buy two ProForm 750 double pumpers pretty economically if you look.

If you talk real nice to me, I can make you a smoking deal on some brand new TR linkage I have.

Then you'd be set.
 
yellow rose said:
You can buy two ProForm 750 double pumpers pretty economically if you look.

If you talk real nice to me, I can make you a smoking deal on some brand new TR linkage I have.

Then you'd be set.
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I thought you were going to advocate for the 750 carbs instead of the 625's?..
The one right up where they're using a 409 Ford they put the 625 carbs on then they needed more manifold then they put more manifold. On then they needed more carb in the 750s did the track on top of a tunnel ram for max horsepower...
Just another $65 for the two...
 
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