Team Camaro Tech banner

1 - 7 of 7 Posts

·
Registered
Joined
·
1,512 Posts
Discussion Starter #1
my engine has trick flow 195s,10.3 comp. airgap and 1 inch spacer. and xe 274 comp cam,1.6rockers. im running a holley 670 street avenger series carb. im thinking of getting a 750 with mechanical secondaries. i wanted to know if a 750 would make a difference? i would appreciate any help. thanks
 

·
Registered
Joined
·
1,512 Posts
Discussion Starter #3
the lope is soooo nice at about 800 rpm its has a 2800 stall w/ lockup on a 700r4 from bto with 3.73s and the 670 isnt giving good top end power.
 

·
Registered
Joined
·
2,125 Posts
Go with the 750, but keep it a vacuum secondary. The tranny will use the vacuum seconds to better advantage then it would a manual second. JMHO
 

·
Registered
Joined
·
1,512 Posts
Discussion Starter #6
thanks guys
 

·
Registered
Joined
·
5,277 Posts
CID * RPM * VE / 3564 = CFM

If you have 100% VE (which is rare) at 7000 RPM (which is high for all but a well balanced motor) your CFM on a 350 SBC would be 708CFM. A more realistic figure would be 350 * 6500 * 0.95 / 3456 which is 625 cfm. So IMHO, a 650 CFM vacuum secondary carb is ideal for a 350 SBC with an automatic tranny.
 
1 - 7 of 7 Posts
Top