Well I started breaking in mines a couple of days ago and install a 2060 pipe. Installed the extra shim to help with the break in, left the needles where they were for the first couple of tanks. Now I'm almost a full turn and a half on the top and the motor is running great, runs pretty cool 220. I'm gonna leave the needles there for now as the pinch is stupid tight on this motor, the otor probably won't drop its nuts till after 3 gallons, will keep yall posted.