I have an 86 iroc-z 350 tpi. Car runs great most of the time, but out of the blue it will just shut down. Only happens when vehicle is warm. It acts like a carberated car that is vapor locking. I bleed the fuel line off and let it set 15-20 minutes and it will run again. We have removed smog control, a/c, has a msd 6al ignition box, msd distributor and coil, have exchanged ecm's replaced 02 sensor, and MAF sensor. Everyone i have had work on this car is lost and i need some help please. Am fixing to be using this vehicle as a daily driver til i finish the 383 stroker i am building to put in it and would like to get this fixed so my wife isn't stuck with kids on the side of the road anymore.