413 dual quad CFM question...

[62maxx]

Greetings,

I'm researching the thought of freshening up a 1963 Chrysler 413 with a mild cam (474/280 Hyd Flat Tappet 234/234 Duration) with stock pistons and the ONLY low rise dual quad intake to fit under the hood is a Edelbrock CH-28 Intake 5440 which recommends a set of Edelbrock 1405 carbs. They are rated @ 600cfm each.

Is this TOO MUCH CFM for this engine and should I find a set of 500 CFM carbs?

 

[DanielSlocum]

I think you want 500s. Edelbrock sells them set up to be used in a pair. I think they are 2 different part numbers because only 1 has a choke. Maybe check Summit Racing.

 

[496 polara]

I think 500's would be more responsive on the street. Now if you had ported heads,compression,gears,and a stall I would say 600's for "hot" street.

 

[gtxrt]

no way on the 500 cfms if your using the ch-28 intake.

 

[33 IMP]

What kind of throttle linkage are you planning? Running on one carb primary, progressive second primary, and vacuum controlled secondaries, I'd run the 600s.

 

[lewtot184]

I use edelbrock 600's on my 440 with a ch28 and I can assure you they are none too big. They are the same size as street hemi. They have small primaries and are velocity controlled. Forget the cfm hype. 500cfm edelbrocks are garbage.

 

[rumblefish360]

A body member 318willrun uses twin 600 AFB’s on a 318 very well.