HP range listed in my 1st post is all I'm shooting for..... at least 450, 500 would be super nice. I figure a factory 440 magnum had 375, just a set of headers and re-jet and you had 400 hp. I would think more cam and better head should be worth at least 50 - minimal target met. TF's easily over the heads I listed, but again, I'm not doing 2300 bucks for just heads on this build. People made 500+ hp for years without TF's on 440's.
