:confused24:My 83 boggs and looses RPM on the high side. Starts amd runs great below 3000. Over that she boggs out. New wires and fuel fileter and plugs. I hooked a timing light to each plug wire and all are firing. fresh fuel and even some sea foam. I can feel the fuel pump pulseing. I can only get one carb drain screw out, the rest are all rounded off.(dam philips heads) Any Idea's would me much appreciated
frank