I just wanted to say how impressed I am with this blower. A buddy put a F-1R on his stock hyperuetectic piston motor with GT-40Ps, a cobra intake, B303 cam and factory computer. He went 11.30s at 122 at 5600'. Then switch from his factory t-5 to a C-4 and tweaked a little with his newly installed EPEC and went 10.97 @ 123. The motor maybe on borrowed time but I was just shocked to see it run so good for such a big boy blower on a mild combo.
Mike