Sbc in a hobbystock dirt track car 360 ci 9.0 compression with 2 barrel carb and hei distributor. The problem is in the feature when the engine temp rises to 200 or higher the engine will cut out and sputter especially on restarts. I always start in 2nd gear and shift to 3rd the car revs and sounds good coming to the green and when i drop the hammer and go it sputters and after i fall to the tail it will clear up and run and be ok. I have changed carbs, fuel filter, fuel cell vent, petronix coil module cap rotor. The car still sputters. I just changed the pickup coil and will try it out tonight. Car runs great early in the night for the shorter heat race. It definately seems to be heat related, hopefully the pickup coil will fix it.