[gsharapa]

Interesting that might be my issue than. I looked up a Holley Main Jet 72 and it has hole size of .0755 and if a QF 72 is .072 than you would need a 75 or 76 QF jet to be equal to a Holley jet. Get's worse the higher up you go like Holley 82 is .094. I just can't seem to find any hole size charts on QF main jets. Since my engine dyno ended with Holley jets and I was trying to richen the primaries and went to QF jets but it appears I may have actually leaned it out using the QF jets. I'll go back to Holley jets and see the results.