Daily Driver Engine 318 vs 360, what one?

Popular Hot Rodding built a 318 with 360 smog heads that produced 415 hp and Mopar Muscle built a 318 with magnum heads that produced 400hp. I figure with a roller cam, and heads that are ported a little more than what they did, my horsepower goal could be achieved.

http://www.moparmusclemagazine.com/techarticles/mopp_0409_318_engine_build/viewall.html
http://www.popularhotrodding.com/enginemasters/articles/mopar/0667em_mopar_318_engine/viewall.html