Big horsepower 318 builds

Icetech said
No sheet needed, i beleive you... i was just curious :) I only want like 350-400hp... just a stop light fun car :)

If you can't make that with trick flows even with a mild ish cam something is wrong.

A stock longblock 5.9l magnum makes 350 hp with 4bbl headers and a 212 cam and 400 hp with a 230 cam and 5.2l also does but with 10:1.