rebuilding my 72 mach1

[72 mach1 novice]

trying to find out what exhaust, manifold, distributor, and tranny to buy to get the most h/p out of my 351 cleavland

 

[Gud T.B. Blown]

Without more info these would be my recommendations:
Intake: Blue Thunder or Parker funnelweb intakes
Exhaust:Hooker long tube or FPE headers
Ignition: MSD
Tranny: Top loader, Tremec, C4, or AOD.

What are you starting out with in terms of driveline (2 or 4V heads, type of tranny, etc..) and what are you ultimately looking to accomplish?