Ok, have 306, AFR 165's (58cc), edel rpm2 intake, Ed Curtis cam (.588- 119/121 @.050) pro M 80mm, 24# inj. Car stumbles like there's a really bad miss, won't idle or run at part or wot, you can keep it running but that's about it. Thought it was a bad injector, nope. Loose ground, checked all wiring. Thought maybe ECU fried, got a friends a9p to try, same as my a9l (it is a 5 speed) Would say it's some connection or loose wire or ground except, I stuck old speed density CPU in between trying the a9p and it'll run 2000% better, I can drive it, smokes white at idle and stumbles at part throttle but much better than either mass air ECU. We can't figure it out, could it take that long for a9l to "learn"? Sometimes it'll run well for a few seconds then back to sounding like it's got 2 plug wires off. We have checked everything we can think of, any ideas???