The only issue i have with it right now is a fair bit of idle hang, especially when i have been cruising slowly, it will actually idel up after i have let go of the throttle and rev from 2 grand up to 4 untill the cluch starts to engage then idle back down to 1800 were it is set. Tonight i took off the carbs again and cleaned + re-set the fuel screw to 2 turns out, raised the main needle to 4th notch down both washers on top thinking it was from running lean. This did help with the hard "warm"starts but not with the idle up on its own after i let off. It doesnt apear to have any tears in the boots or anything so yet again i am baffled with my viper. Anyone have any suggestions would be greatly appreciated.