273 cam selection on Desktop Dyno

Stick with the 920's. They out flow and have more port velocity stock than the Swirlport

And the e-4 is a really good cam for your combo. You need to put some gear in the butt of that car to realize the potential.

ISKY
Grind No./Type
E-4 SOLID Tremendous torque & good mid-range power. 9-10.5
1 compr. good idle stock converter. 3.23-3.70 axle ratio. Up to 625 CFM Carb. RPM-Range
2000-5500 Valve Lift - INT
.425 EXT
.425 Valve Lash Hot -