Description
Must use Roller tip rocker arm. True roller rockers prefered with 7/16th screw in studs. The largest of our roller tip rocker camshafts. Deep sound in exhaust. Moderate to heavy chop in exhaust. Suggested compression ratio 10.2 to 10.5. Dual exhaust a must, headers, aftermarket ignition, aftermarket single plane intake manifold such as a Holley Street Dominator. 750 carb. Performer rpm intake manifold would be a good second choice. Suggested stall converter at 2400-3500. Gear ratio with automatic 3.73 to 4.10. Manual transmission gear ratios 3.90-4.56. RPM range 2800-6200
@.050 228 int.
@.050 235 exh.
Lobe separation 109
Int. Lift .530
Exh. Lift .522
suggested lifters https://oldsperformanceproducts.com/product/lifters-hydraulic/
