Take the engine to Butler or Kauffman..tell them your intent..trans type, carburetor, rear ratio..etc and they will build you a stock looking pump gas engine with a custom grind that will make you grin.
Dont....I repeat dont...take a Pontiac engine to the corner .machine shop unless another Pontiac guy vouches for his build.
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.