I just go back from the ADRL event in Saint Louis MO. Those guys showed me a new side of 1/8th mile drag racing. Pro Mod racing is AWSOME! I was there with a pro nitrous team. 4 fogger systems on a 540 ci motor. The other class was Pro Extreme and as far as I could tell, there were not rules relating to motor. The only rule was no Nitro. Wild watching a car with doors do a 3.95 sec 1/8th mile pass. Several novas in the field!