I agree about the whipple being a much better way for $ vs horspower. But I really wasn't looking for THAT much extra hp. But, I guess if it's going to cost over $5k to get 100hp or so, it may be worth looking into a whipple. But. like I said before, I would have to regear my drive(not cheap on a blackhawk) and with my drive being so short, I really don't want to run 600+ hp because I would be worried about breaking my drive.

So, do you have to run a whipple at 6lbs or can you run them less?

Thanks Budah, I know 5200 would not be a feat! I was thinking the opposite that with 6lbs of boost and my gear ratio/prop I would want to over rev. So, I was thinking with some prop work if I could run the whipple at say 4lbs boost which would give me 550 hp(just guessing) maybe that would put me at my max speed speed for my current setup and be a LITTLE easier on the drive!

Does that make sense?

BUDAH, how long can you hold a supercharged motor WFO?