[Keithc8]

I would say that those numbers are very good at the rear wheels. Most of these cars lose more in the 20 percnet range if not more depending on the exhaust and rear end. We have worked with the headers and side pipes and picked the cars up 60 to 70 HP at the rear tires before and that is about 80 to 90 at the flywheel.
You should have a very nice driving and running car with that package.

Good luck, Keith