Here's a little of the set up that I have. I have a stock stroke crank, stock cyls that have the drag port with boyesen intake ports and triple exhaust, the cyls are at 66 bore and are decked, the piston comes out about .040 to .050 so I cut .030 on the domes of my cool head and it barely cleared. I have 1/4 in reed spacers with V force 2 reeds and an aluminum Y with a 39 PJ keihin carb. I have a .63 pilot and a main drilled out to 330 but I think I'm still running to lean. I have a k&n 7in pod. I'm running the NGK b8es plugs and as for ignition I have a Ricky stator with advance plate set at +4. My engine overheats quick and I have a oversized aluminum radiator and a pro design water pump impeller.
Do I need a bigger carb or do I just need to go back to dual carb?
Please let me know any advice you guys might have