Originally Posted by ss396si
Then down the road change the top end.I can transfer parts from the 305 to this motor.
Be careful here. Bolting the 305 heads to a 350 block and using a short duration stock cam could raise the dynamic compression ratio into the threshold of detonation, depending on fuel quality. Resist any thoughts you may have of using two head gaskets to lower static compression ratio. That'll just make it worse.