[Chevyman63]

Originally Posted by truckster

Not that I want to start an argument, but it seems to me that if he has good power off the line but it falls off at higher speeds, he's probably going to have less power with 4.10 or 4.56 gears on the highway. The higher ratio gears would help more off the line.

I'd probably look at the points, do a good tune up, etc.

I was kind of thinking the same thing...maybe even a carb rebiuld.