I was talking to a friend the other day, and something was brought to my attention. I wanted to install a header prior to installing a supercharger (when available) which would make things easier because it looks like the S/C's shaft will go right over the manifold, anyway, to the point. If you were to install a header WITH the supercharger installed would you lose boost because of the higher flow through the header? Seems sorta logical, don't think it would apply to turbo tho because you get a new manifold anyway. I assume lo bux will shed some knowledge.