Headers

break in a motor or cam means the jetting will not be spot on and may cause a EGT issue. If your just getting headers for a running car, I would be wary about it , remember if you put headers on a manifold tune, you will be a little lean. Maybe jet up 2 numbers and start tuning with the headers in place from there. Rather run rich and cooler than lean and hotter with those new headers until you get them figured out. Wideband would be a great thing to beg/borrow.