It was probably the clutch, LOL! The best burnout I did was when I first bought my truck (454SS). It makes really good torque from the factory and since it's a truck, it doesn't weigh much in the rear. It does come with an LSD, so both tires get to participate in making smoke. Anyway, a friend and I drove for about 15 minutes until I found the perfect spot. It was in an empty parking lot behind some building where a cop wouldn't be able to see us. I started off doing donuts until there was so much smoke it was hard to see. Then I power-braked it around the rest of the parking lot making sure I left my mark everywhere. I spent the rest of the month wasting my tires in virgin parking lots and had to get new tires at the end of the month.