Been away with the family. On this subject....DO NOT USE CRAPPY "CHIPS"!!!!. The main damage will come from advancing the timing. This is ok in non-load situations but at high revs and fast get-aways even 3 or 4 degrees on a modern engine would be enough to create pitting and possibly holeing (?) of pistons. A proper re-map will adjust the advancement against spark plug voltage requirement, air temp and other factors. The cheapo versions just advance the timing accross the board.