Something to think about here guys. So-called 300cfm head flows 300cfm@.700 or maybe .750 not .500 or .550 lift. The cam determines your usable cfm range.

1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time