You could have a bad MAF. If you unplug the MAF and start the car and it runs better then I would suspect it. Don't unplug the MAF with it running. When unplugged it may take a bit of feathering of the throttle to get it to run until the PCM catches on and runs off it's premapped tables.
Don't drive it hard w/ the MAF disconnected and stay out of boost for sure.
I don't have a link offhand to what the normal values are. I'd have to find them on here somewhere. Before I forget again, what year GTP are we dealing with?
On the coil pack with the stripped screw, is it the screw itself that is stripped or the ICM plate that it bolts to?
