550 HP sounds enticing and fun, something I may want to try someday. Will that engine run on pump gas? Also would that power level require torque boxes or frame connectors?
550 can be done on pump gas pretty easily with reworked aluminum heads. Not too many people add torque boxes, but everyone should be adding sub-frame connectors, even if you're running a stock motor. It made a world of difference in the way my car handled.