sandgrencivic2k1,
You said you changed the gap on your plugs but did you replace the plugs with new.I ask because the issue you are haveing I went threw with my P.V cheetah also.The hole problem of mine was just the plugs them self.I replace the plugs with new ones and set the gap to 23 thousandths and fixed it.Just a thought for you.And if you can make it out to sand mountain on 8-13-8-16 sun-wed I'll be there tuning my cub and we can throw parts at it off my P.V 'shee at try and solve your problem.