Swat,

My guess is your new fuel lines will do the trick. It sounded to me like you had a stiff clunk line. Also, you're smart in dumping the tee and going with the 3 line system. You're also correct by looking at your plugs and making the proper needle adjustments. I think you're on track in diagnosing your problem. Good luck. If this doesn't work move onto the carb block to check for leakage there. You 'should' be able to make your engine run rich just to verify that you're not sucking some air somewhere.

Rich