There's been a lot written about optimizing header design, but most of us can't afford one-off, custom-built, ideal-for-the-combination headers. Realistically, we use what we can buy over the counter.

We're all for getting freaky. Whether it's a 632 in a Chevy II drag stud, an SB2.2-headed street machine, or an LS1 in a Rustang, freaks add a dash of zest to a hobby prone to vapid parity. The big ...