there was a car driving below speed limit and kick it into WOT to make a good pass. it was strong and kept going. when i came to a stop the car just shut off on me. i could restart it if i give gas but it pick up really loud and sound like a muffler and i have the stock muffler and resonator. very heavy fuel odors and white smoke puffing out the exhaust. i dont have much power to move the car. is it possible that the rev probably went high and hit the valve? i didnt catch how high the rev went but i believe i drop the gear down at 1st around 25mph.