my mods: aem SRA intake, Agp wastegate, MBC, 8.5 MSD wires, ngk irridium plugs, 3"downpipe to stock. i was boosting about 8 lbs. in third gear at like 1/2 throttle then around 3500 rpm's i got a big engine cut and a backfire, all in an instant: did this twice in two weeks....???? possibly my plug gapping.... I need your help...thanks

 

yea sounds like you need to lower your gap