What 18436572 say's is true . I would use that camshaft also . Pull the heads have a .020 mill cut made install new valve springs to match that camshaft . Gasket match the ports . Install an Edelbrock EPS intake with an Edelbrock 600 carb . And install a curve kit and High Volt coil in the HEI with a good set of plug wires . You will have a 350 with around 325 HP COOL .