Hey guys, my dad is having problems. Over winter we upped the compression on his car a little and then had it re-dyno tuned. The tuner went from using autologic chips to SCT, so my dad had to switch chips. My dad had 3 tunes burned, one with stock timing, the next is a pump gas tune with more timing, and the last one is a race gas tune with even more timing. The ONLY thing else that was done to the car was an entirely new rear suspension and that's it. Well, on its first track outing in april the race gas tune wouldn't work. My dad could fire the car up, drive through the staging lanes, do a burnout, launch the car, but the second he hits second gear the car damn near shuts off. It will idle, but the second the throttle is touched it noses over. It acts just like an old carb'd car does when its cold out and you floor it before it warms up... it will nose over and act as though its flooding out. If he'd turn the car off it'd fire right back up and run normally until he nails second gear hard. This ONLY occured on the race tune. He switched to the pump gas tune and it ran PERFECT! He was pulling the wheels on the launches and hitting second gear hard without any problems. A few weeks went by and all was well, then one night at our local track on one and only one run it did the same thing on the pump gas tune. At this point we suspected something was up with the tune. I have a buddy that experienced something similar in his 10 second '91, on a hard run when he'd hit 2nd and sometimes third the car would do the same thing. He uses an eec tuner/tweecer and determined his problem was he had the PIP set too low and it was sending an invalid signal to the eec and the eec went into shut down mode. With this info we went back to the dyno to have the chip re-burnt and to alter the PIP if need be. I wasn't at the dyno so I don't know what he set it at or if he changed anything else. So dad went back to the track and low and behold it does it on ALL the chip settings now, pump gas, race gas, etc. It always happens the same way. We have checked the grounds in the engine bay and they are all secure, we unplugged his MSD to see if that was somehow at fault and it still did it, we checked to ensure the EEC and chip were secure and not moving around on the hard "hit" on going into 2nd, etc. We are at a TOTAL loss here now. ANY, and I mean ANY help with this would be greatly appreciated. The car ran EXCELLENT last year and have never even hinted at this problem before. Some are saying that the fault is in the eec itself since it can't keep up with what is going on... dad shifts the car at ~6500 though and always has for the most part. 
PLEASE HELP!
PLEASE HELP!
