Originally Posted by therotaryrocket

polish the rotors, super shine. My auto tech teacher did a complete polish to his entire 3 cylinder Geo metro and gets over 75 mpg and plenty more power on tap. Every internal part of the engine is polished like the crank journals, pistons,valves, combustion chamber, crankshaft(even the counterweights). I do here this polishing stuff takes for ever though. I always thought of putting a spiral in the intake manifold like the briggs and stratton engines, not like those stupid tornado inserts.