Ive not been to the track yet but my toy seems ok on the street The 500 caddy in it has the heads shaved 120 thousandths,A Edelbrock intake,750 holley carb and a 270 custom grind cam.The biggest problem I got is traction. The mule just wants to eat the tires off no matter how easy you try to pull out. Hopefuly ill take it to the track soon and have some numbers for ya.