Richard speaks the truth. If you can find a good Vortec 350 you will be miles ahead of the game. Flat tappet cams are still do-able, but roller cam engines just make so much more sense with the current oil situation, and they make more HP too , all things being equal.

Chevy put so many of these in various cars and trucks (and boats) that they have become very available and reasonable. Once you own a roller cam engine I bet you will never go back. (no breakin time required either ) I ran a 350 Vortec in my 23, with 305 heads for more compression, and it was a great engine in all respects.

Don