There are MANY more ways to make a car fast besides the engine. Once you get it super tuned just right, move on to the rest of the car. It's the car that's most important anyway.
:thumbup: Agreed. No sense in adding a lot more horsepower if you can't get it to the ground efficiently. (i.e.: drivetrain and suspension, but also consider frame connectors) Otherwise, you'll be literally spinning your wheels!