408 cid 10.8 cr -1 heads 343 cfm int 275 exh

I personally would like more compression and what are your cam specs? With that 60 foot your car SHOULD be flying.

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