302 Build For 350-400hp

http://www.hotrod.com/how-to/engine/116-0307-ford-302-v8-engine-buildup/

Easiest path right there, and it has perfect street manners given the camshaft used.


If AFR heads are too expensive, keep reading.

http://mustangsandmore.com/ubb/BudgetSmallBlock.html

Budget 300+ horsepower build, and is actually the basis for what is currently in my car, which put out 267hp at the rear wheels through a 2200rpm stall converter and a C4 automatic. If you go with ~20% drivetrain loss on the chassis dyno, that means I'm somewhere around 330 at the flywheel. (I used better rocker arms, a better cam, and a better intake. At the time it was dynoed, the car was still carbureted with a 670cfm Holley Street Avenger.)