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You're correct, Rob, but the carb base passages are very small compared to the basically open plenum he's creating with that spacer.

OK, but that adapter just negated all the good things about a 2 plane intake...the 2 planes are no longer separate.

I think you just created a single plane intake.

Video still doesn't work for me.

LOL...the carb off my weedwacker works great on my blown fueler.........................

LOL...Good eyes there Rob!

They aren't the same. Internal passages etc. have been changed from the original Carter design. They are the same as much as Demon/BG's are the same as Holleys. I'm a Carter fan (surprise, huh?), but I have to admit, Holley got it right with the 3310 750/780

I google-imaged "LD4B" intakes and they all had the same Chrysler part number as the subject of this thread. Some of the pics are even from FABO here.

Mike....I'm confused by your statement.....The LD4B IS the intake made by Edelbrock for the '67-up small port heads ie: 273/318.("D4B" is for the earlier small port heads) The LD340 was made later as the 340 didn't come around until 1968. I believe this is a bona-fide LD4B intake, but it has...

Wow...great deal! Anyone in the area go buy it and ship to Aaron? Wonder why the "4" is missing from the casting number?

If you find a D4B, grab it! The mods you have to make to make it work on your '67-up heads will be covered up if it gets installed on pre'67 heads, so you're not "hurting" the early manifold any. ...and ,yes, I'm not a fan of the StreetMaster on any engine!

Dont listen to the nay-sayers...Theres nothing wrong with the SP2P intake. You arent gonna turn it 8000 rpm, are you? Its a great street manifold, PERIOD!

Disagree with that. Don't "skip it".....I've had a few, and they are great, for a small, basically stock engine...small runners = great torque. Certainly better than the stock cast iron lump or a Streetmaster

Also, don't eliminate an SP2P if you find one....a very good torque manifold for the 273...

Edelbrock AFB's use 2-step rods, and all AVS's and early Carter AFB's use 3-step rods.

4966S appears to be 70-71 440 Chrysler AVS... http://www.carburetion.com/CarbNumber.asp?Number=4966S http://www.carburetion.com/carbinf.htm

Number stamped on the left front mounting ear and consult a decode chart for application.

Is this the kind of air cleaner you have???? I believe 65 dartman was referring to adding flexible ductwork to the snorkel.....

No need to drill holes...Holleys have a small screw near the sec. linkage that when turned, will open up the sec's slightly to allow you to close the primary blades to allow the mixture screws to work properly.

http://www.mymopar.com/index.php?pid=109 scroll down to 1965 Plymouth service manual

That's what was said way ^^^^^there...that a "stock" 273 carb won't run a 360 properly, but, you decided to jump on every one that suggested it. Also, if you reread my response, I didn't tell him to go buy a new carb....I suggested he "borrow" one to test...wouldn't cost him any $$$.

It all depends on how the carb is jetted.... Too lean and it'll run hot

I would guess a stock 273 carb (~500cfm) would be a bit lean on a 360. I would try and borrow something a bit larger (600 to 750cfm) and try it. What do your plugs look like?

The large port on the rear of the carb is not really for power brake connection, but can be used as such. It is really for PCV hookup. Power brake vacuum should be hooked to the large port in the manifold runner(s).

Using manifold vacuum, maybe your vacuum is dropping too low at idle, thus dropping out your timing

Why would you want to? The stock 2bbls were a terrible carb. A small 4 barrel and suitable intake work so much better.

Go to your auto parts store and buy a cheap, chrome air cleaner setup of proper diameter, and just use the base under your Commando/Charger lid.

I'd go ahead and check accel pump(s)...also check vacuum advance is working and that you have enuf initial advance...vacuum leaks, float levels, weak fuel pump can all contribute to this problem.

Like Rick says, you could be drowning it if you're running stock comp. convertor, gears , etc.....Thats probably why the factory never put DP's on stock engines.

Check accelerator pump for proper functioning.