I put my car on a dynocom dyno which is supposed to read like a mustang dyno. Made 145whp/122tq. My afr started up at 13.2:1 and came down pretty much linear as rpm increased to a final afr of 11.8:1. I was told it needs to be tuned to sit at 12.8:1 all the way across. Is that worth any power? Seems like I made low hp for the tq it put down. On a 75 shot with the correct jetting (.042 nitrous/.028 fuel- NOS jets) my afr was 9.0:1. I had to go down to a .022 fuel jet just to get it up to 10.4:1. I don't understand why the "correct" 75 shot jets made the car so rich. Suggestions for n/a and nitrous tuning as far as fuel is concerned are appreciated.