You set the pump arm to have .015" clearance in the idle position or the WOT position? There should be no slack in the idle position. The correct method is to hold the carb wide open and make sure the arm has at least .015" travel left so that you know the diaphram isn't bottoming out. http://www.youtube.com/watch?v=k-Nx5...B0ABF&index=69

Blue on the front is good. You probably need a blue one on the rear also. What size nozzle is back there. May need to go up a couple sizes. The #2 hole in the blue cam makes it very aggressive.