I'm calling tomorrow. I should not be having this much trouble with an out of the box 600 cfm carb. I know I'm not the greatest carb tuner, but I also know that this carb should be letting me adjust the idle somewhat with the idle speed screw. It's frustrating. I can't set the timing properly without setting the idle low, I can't adjust the idle any lower. Okay, time for a beer. Thanks for the help.