Which carb do you think?

I putting a 331 Hemi together that is bored out .60 over. It has a fairly aggressive cam. I'm using a Hotheads intake manifold. I think I need a 600 CFM. I have been looking at Holliys. I went on the Summit web site and there are a bunch of different models. Do you have any ideas? This engine is going in a 29 roadster with no fenders and I want it to be a very traditional car.

 

Then you'll need a weiand dragstar and 6 stromberg 48's. But hey that's just my opinion

 

I think this is as close as you can get with a new carb at summit.

http://www.summitracing.com/parts/hly-0-1850c/overview/

It's not really what you want, but if you're committed to a "modern" single 4bbl...and you can't find a used one to play with...it might work.

 

For me on start up,and to get things dialed in for a time-750 vac sec.
When all's running right,I'll switch to the log with 4x2 straight shot.
600cfm might be a tad small if you have an "agressive "camshaft,but a lot of other factors come into play with combinations.......Converter-AT/Manual trans,gears,tires,fuel system,ign system........see where this can go?

 

A quick fuel is a great carb also.

I think a 600 may be a little small, but it might work.

Holley 1850

 

Start here.

http://www.summitracing.com/popup/calcsandtools/cfm-calculator

 

Carter AFB (or) 2

 

I'd go 950 3bbl...

 

The word "traditional" has different meanings to different individuals.

To me, a "traditional" 331 would have a set of two Carter WCFB 4-barrels.

The Carter AFB and Holley 4150 debuted in 1957, so a build prior to that time would have not have used either the AFB or the 4150.

Earlier 4-barrels would include:

Carter WCFB
Holley 2140, and 4000
Rochester 4-Jet
Stromberg 4A

Please note the above are listed in alphabetic order.

So if you want a "traditional" engine, determine the meaning of "traditional" to YOU, and then pick a carburetor(s) with which YOU are either currently familiar or with which you plan to become familiar. Carburetors, like many things in life, are compromises. Each have their advantages and their disadvantages.

Jon.

 

I would call Bob Walker At Hot Heads. He is very knowlegeable about hemis & is very nice to talk too also. A really nice guy , has helped me many times.

 

The whole question of which carb is "traditional" becomes a moot point when you are bolting it on top of an intake that became available roughly ten years ago...

 

What about a beehive holley? Like stock on a '55 t-bird. They really look neat

 

I'd go with the Holley 4150 vacuum secondary 650cfm carb. electric or manual choke, whichever you prefer.
http://www.summitracing.com/parts/hly-0-80783c/overview/