Friday my car was on the dyno being tuned for the 2.9 and other mods I added. Mods in my sig. The shop said the first pull went good. I should mention that the shop my car is at is not doing the tuning. Anyway, after the 1st pull he sent that log to my tuner and he made adjustments. The shop then went to do a 2nd pull and one of the rubber elbows on the back of the blower popped off, the car went lean and the maf sensor flat lined. After that the shop called it quits for the day. Yesterday I drove the car with the good tune and the car would cut out and go lean during a wot pull. Any input on what's going on? The car is going back to the shop tomorrow for more tuning but I'd like to figure the problem out before the car hits the rollers again. The shop charges me for every second it's on the dyno. Also, I'm a little disappointed with my numbers it put down...713rwhp...