those old things are great for rolling the coal had 90 chevy 2500 single cab 4x4 with a 6.2 it had a 5 speed and man i loved that thing wish i still had it you could be going up a hill and she would just keep going even pulling but of course youd have to shift to a lower gear, i got stuipid and put a banks turbo on it and the boost got to high for it and it blew but before that all that was done was marine injectors, turned up pump and inline performance lift pump