If your going for N/A power, go for a 100KW 4AGE, if you want to go turbo, go a 4AGZE and remove the supercharger, whack on a turbo, Forget the idea of a 20 Valve, its just pure wank factor in my opinion. If you want serious power though, take fooks suggestion and go for the dirty datsun motor :insane: *no offence intended datsun lovers*