Have a puller G that coughs and sputters when under 3/4 or more load. Using big nut carb that all passages are clean. Carb has been honed out. I can have load jet backed out completely with some improvement. Have gas line directly to carb for max flow. Running a good hi octane gas. Did drill very small hole at bottom of neck below load needle seat so more gas gets to main jet. Has anyone else done this? Do I need to drill hole larger but careful to not go too big? Looking for some ideas or to hear from someone else on what you did to get more gas under load.
PS I am using electronic ignition.
PS I am using electronic ignition.