It's getting to be time to freshen up the L. It's an 04, 21,000 miles, E series can with stock head pipe, Uni, de-smogged, de-snorkled, carb mods. I am happy with how it runs and the gas mileage so I would like to keep those in mind during the re-build. As a minimum I'm thinking rings, cleaning up the ports, maybe a polish on the exhaust side, thinner base gasket and of course a thorough inspection. Opinions on a hotcam or high compression piston upgrade. Do you need a bigger head pipe and carb to realize a difference? Would you have rathered done something less radical? Gas mileage? Anyone know of a 9:1 or so piston for the L?