WMR

need to slow water pump down. pump seems to cavitate at high rpm 6500-7000, race motor. stock part number? WRM fwent3@yahoo.com

remember that the exhaust is 80 t0 90 % efficient even with the smaller valve. the piston is pushing the charge out and it is expanding at the same time. With a well designed header you will get a scavinging effect from the other tubes actually helping to pull the spent gasses out. read an artical on 2 stroke pipe design, it can be very enlightening. WRM

Need a 411.ring and pinion for R160, also single 45 DCOE, just carb have the rest. would be great if DCOC came off of a L16 race engine. NO JUNK! fwent3@yahoo.com

want to sell the ring and pinion? got another?