I have a 1992 Chevy C1500. It has a carbed 350 vortec with an LT4 hotcam, an NV3500 out of a 97 C1500 with a Core shifters Hurst short throw and a 1990 454SS rear.
I've gotten past the "break-in" period and finally made some WOT full power pulls. before, I was only shifting at 5,000 rpm...