TD pro mod sidewinder with a stock turbo and stock sidewinder engine just ran a 4.10 @121mph in 500 feet in Practice today on the td gps in the very high heat and humidity today with a 2500 feet DA. I believe it will run 4.0s with more time in this heat let alone in autumn weather. But we add to add weight to practice for pro mod 725lbs weight limit. We added 70lbs to run 725lbs with our new light driver Anthony Fortin. With added weight we still 60 foot the same and et will be revealed after th