89 360

Open air clean atop a 750 cfm, I'm not sure on the intake. Post a picture if you can. The comp. ratio is good. If not a half point high. The cam can be a simple 280 duration comp. Use headers with 2-1/2 exhaust pipe size.
The heads should be pocket ported at least and use 2.02 - 1.60 valves for a good top end. They'll need to be able to flow well. If the exhaust flow is short, under 70% of the intake, use a dual pattern cam. A simalr intake duration with more exhaust duation is good to do. An Extreme cam will work.