On the engine issue... I know it's not completely related, but wouldn't an NPI engine re-fitted with PI heads make more power than a PI engine? Because of the higher compression and all. I've asked this question before and I didn't get a straight answer, so I reworded it and asked again. Also, searching is useless since all I get are flame wars about NPI vs. PI. I'm thinking I'm gonna get an NPI motor and put PI heads on it instead of buying a PI motor, especially if they actually do make more power.