SBE 318 basic rebuild +CAM , INTAKE, HEADS, expectations?

Buick motors back in the day were total badassary. I've said for years that had Buick made an F body like the Camaro of Firebird, it couldda been a Hemi killer. A Buick F body with a 430 and a 4 speed.
i had a 65 GS with the nail head backed up with a 4spd and that thing was no slouch for what it was.

never met a corner it liked in its life though!