[Swifty1638]

He had no need for those. It used to be water-to-air, but now it's all meth injection, and race fuel. As for the block, it's hard-filled/concreted. Coolant only flows through the head, and that's it. He changes coolant and oil every run, like most of those guys do. If you see an in-car video, watch the 2nd gauge in. His water temps shoot up as he runs the car, it's amazing the car can take that. (o-ringed the block)

-A. Swift

P.S. They are unorthodox cam gears, if someone was still unsure.