Hot Rod Forum banner

1 - 3 of 3 Posts

·
Hates: Liver. Loves: Diesel
Joined
·
5,659 Posts
Exhaust divided by intake times 100.

If your intake flows 250 and your exhaust flows 180, then its 180/250 x 100, or 72%.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #3 (Edited)
Help with heads

Thanks Curtis. According to calculation, I am in real good shape. The %'s are [email protected] lift with in.74 and exh.60cfm. and taper to 70.7%@.600 lift with 294.6in.and 208.5 ex. and 70.5% @ .700 with 300.3 in. and 212 exh. Not bad at all for sbf. heads. This little motor should have some pretty big intentions when it's all done.
 
1 - 3 of 3 Posts
Top