Hey there all again. I have a 66 390 with a comp cam for the low end and an edelbrock aluminum performer intake with some rebuilt performance heads and a 600cfm carb and a stock dist with a crane cam pickup. Right now i have the stock log exhaust manifolds and im loooking for headers. But i want to know.which would be better... Shorty headers or tri ys? Also has any one used the sanderson shortys for the fe?