Cheapest ways to increase power

Well here's the thing too, i have always hated v6's, and inline 4's.
So inline 6's aint my thing really. I only tolerated the slant 6 because it was a legend.

But i'm a big block v8 guy. I would slam a 426 Hemi in ANYTHING(well any mopar) if i could. Smallest v8 i would ever use is a 318.