so I just bought a 99 chevy 3500 classic it has a 454 and is 4x4 it has 99,700 miles on it I got it from my aunt for really cheap and pretty low miles for the year. Oh and it's not. A dually. But my problem is that I feel like for a 454 that' it pretty sluggish I know it really heavy and maxing for towing but I was wondering what would I have to do to bring it up to 500-600+hp