Originally Posted by bigjayjay1

Ray sending a set in from a motor I'm overhauling for a local racer sending tomorrow. Its a OS 21 xzb speed. Also the set you did for me OS speed vzb is running like a champ motor had 11 gallons before the pinch its on 4.25 since your magic.im running Byron's 30 11 oil on this motor can't believe i have around 15 gallons on this mill amazing don't care what people say speeds are quality just as Nova which I'm learned just started running this season from my buddy at clockwork Neil.