I have put some new stuff on the car... aem wideband, new chip. 6.1 ... I made 2 passing at the track, sent a log to Eric and he said it was off pretty bad. Advising me to tackle the high BLM's first. That the BLM's @ WOT are at max correction. My question is. Where do I start with this? I searched for a VAC leak and can come up with nothing. I thought I had a header leak but have re torqued them and don't see any cracks there. What direction should I go now? Its there some sort of "checkoff list" I can go through? thanks, John