RE: Is the RCMK EVO really
Another positive for the RCMK engines is the 929 carb, keeps a great tune. Also if you have a zen stocker you can buy the EVO head kit and turn a Zen stocker into a EVO Beast, just use the Zen piston and ring. $89.00 or so for EVO performance with a stock Zen motor, Mine flys in my Thunderbolt, Two gallons of camp fuel no problems.