We put a gas carb on the AMX yesterday. With Gasoline the previous best was 5.95 @ 113 mph. That was with a Pro Systems 1040 gas carb. We put a APD 1040 gas carb on it yesterday. Went 5.86 @ 116 mph. That's almost as quick as the alcohol carb. I was very impressed with the APD carb. And that's with zero tuning. Straight out of the box.
New best on the AMX
- Thread starter tvt59
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NC Engine Builder
Grumpy Old Man
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Nice! A 3 mph gain is pretty good!
Wow!! Congratulations, never hear of that to often.
You must feel like a rocket it tied to you when you take the green
Deadcarrescue has a brand new video out walking a retiring yard, I would say junk yard but he has a lot of low mileage insurance claimed cars, a perfect old AMX in that video with phone and email address.. it's a perfect body, looks to be a 69 maybe
You must feel like a rocket it tied to you when you take the green
Deadcarrescue has a brand new video out walking a retiring yard, I would say junk yard but he has a lot of low mileage insurance claimed cars, a perfect old AMX in that video with phone and email address.. it's a perfect body, looks to be a 69 maybe
The car is .09 quicker and almost 3 mph faster. I don't understand how there could be so much difference between the two carbs. The apd must atomize the fuel better. We did no tuning on the APD carb. On the Pro Systems carb we had went up and down on the jetting to fine the sweet spot.
Very cool! Do us a favor....well at least me and refresh our (my) memory on the car's setup.
68' AMX, 2630 lbs without the driver, 421" SBM, stock block, Bloomer VR-200 heads, Super Victor intake OOTB, Crower 31409 solid roller can, 11.3 to 1 compression, 4.125" stroke cam, Kevco oil pan, 6.200" Callies rods, APD 4150 style 1040 cfm carb, TF904 trans by Keith Long the 727 Specialist, Coan 8" converter, 4.88 rear gear, Phoenix 14.5x32x15 rear tires
Hauling the mail!
Oh LAWD! That'll get it did!
ValiantRacing
Well-Known Member
Very nice
33IMP
Well-Known Member
Three mph gain at that power level is a BUNCH of power!
33IMP
Well-Known Member
I remember hearing the Pro Systems carbs were ridiculously fat outa-the-box.
9secRR
Well-Known Member
that's awesome. making some power at 116 mph
pro systems are junk, i had one and fought it till i had enough and gave it away. lost $900 giving it away but i didn't care at that point.
pro systems are junk, i had one and fought it till i had enough and gave it away. lost $900 giving it away but i didn't care at that point.
TT5.9mag
Two atmospheres are better than one
That’s an impressive gain. Are you sure you didn’t bump the distributor and put 4 more degrees in it?
Any chance you could do a side by side or above shot of the carbs showing us the boosters and venturis?
I went round and round with Patrick last year. After spending $2500 on two carbs I scrapped them both and went APD.
I'll see what I can do. The Pro System carb is a reworked Holley with his "Venom" metering blocks. The APD is a completely APD designed carb. They design every piece on it and it's 100% billet. I think.
B3422w5
Well-Known Member
Nice job Vic, very impressive numbers.
skrews
Well-Known Member
Never seen a ProSystems carb that impressed me.
BPE
Well-Known Member
She ain't no *****!
Thanks,
Rod
Thanks,
Rod
Nice! Is that a 1040 cfm with a 4150 base?
Yes Sir
What block are you using? Thanks.
jimjimjimmy
lobsterman
wow what a difference , i can clearly see why the APD could flow more . It sure is a Beaut , i'm considering a 950 for my 418 . Would you happen to have a few more pics of that fine piece .
TT5.9mag
Two atmospheres are better than one
It’s right there in his description. “Stock block”.
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