If you are running 2.75 to 3 turns out on the high end then the pump is most likely too lean. The regulator on the pump should be flush with the housing or maybe a 1/2 turn in. If it is surging on idel the pump is too lean. Screw the reg. in to flush or the half in and then readjust the high end. You will most likely 1.75 to 2 turns out on the high end. Make sure all bolts are tight on the engine first before adjusting the carb. settings. I kind got this backwards on the trouble shooting, so check everything and even the fuel tubing on the engine. Then start adjusting the carb and pump settings.

I hope this helps a little.

Larry