Throttle response
#9
Registered
Run it wide open with a fresh set of plugs and check your plugs. If your so rich that you get nothing past half throttle it should be relatively apparent. It would be good to know what intake vacuum is at 1/2 throttle and also what power valves you have, that way you could tell if the power valves are opening at that point and causing you to run rich. To lean out the carb you need to change the main jets which effect everything past idle.