Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Please critique my setup! I may have mismatched some stuff...
View Single Post
  #4 (permalink)  
Old 05-09-2010, 10:16 PM
66GMC's Avatar
66GMC 66GMC is offline
Get in, sit down, hang on
 

Last journal entry: Cab Removal
Last photo:
Join Date: May 2005
Location: Olds, Alberta Canada
Age: 56
Posts: 2,761
Wiki Edits: 0

Thanks: 32
Thanked 90 Times in 85 Posts
CFM Calculator

383 ci 7500 RPM with 100% VE = 831 CFM
383 ci 7500 RPM with 92% VE = 764 CFM

That's what the figures say, but they do sound low to me.

I ran a 351C to 6000-6500 RPM and according to this the 600 CFM (1850 Holley) that I started out with should have done the job. Not so ... it seemed to run out of breath around 5500. I upgraded to a 750 CFM (3310 ) and that seemed to do the trick.

I'd suggest asking a buddy to borrow something a little bigger (850 CFM) and give that a trial pass.
Reply With Quote