Technical Carb CFM recommendations

I just got done putting some AFR 180cc heads on my 350 chev. Originally stock top end. It runs quicker, but I am wondering if there is a bit more I can get out of it. This leads me to the carb. Engine is in a '32 Ford, so street. My friend wants me to go Holley, but I just feel Edelbrock is a better fit for this car and the street so looking for good low-end and not so much top-end for sure. Currently an Edelbrock 1405 600 cfm. Can I do a bit more? I know there is an Edelbrock 650 cfm, but would that bit of increase even make a difference?

Engine bored 30-over
Isky cam 232 @50 .485/.485
AFR 180cc heads
Comp ratio about 9.5:1
Holley Contender dual plane
Edelbrock 1405 600 cfm

 

So your planning on driving at WOT 99% of the time instead of 1% of the time and are wanting lower mpg? Is your friend going to buy your gas? We all have our reasons I guess.

 

Properly tuned, the 600 will be just fine. Get the manual out and study it carefully, it’s a bit to get you head around at first. They don’t normally need big changes. Jets, springs, rods. Easy to work on.

Summit has some annular Venturi models out that are getting really good reviews for drivability and gas mileage. Along the lines of the Autolite 2100/4100 the Ford guys like. Worth a look.

There’s nothing wrong with certain factory manifolds and a Quadrajet either on the street and with the right combinations.