As you could see below, I have a 98 GT with 60,000 miles. I have been saving some $ and am aiming at some good hp. Question is should I transplant a used mach 1 engine or go with the KB supercharger. I really like the KB but I kind of wonder how much more life I would get out of my engine that already has 60,000 miles. Plus the additional cost of the KB. The other option would be to PP and PI headswap, but I don't think that would give me near enough hp. I want to have enough to make sure I leave the 2005's in the rear view. Cobra transplant isn't an option due to cost. You have the floor.