i do have an aeroforce gauge, but everything is fine according to it...tonight i smell exhaust so i went to feel around the downpipe, and got the **** shocked out of me, so i replaced all the wires again with another new set i bought, yet it still does it i don't know if it was from a spark plug wire or what but i did the visual look in the dark and couldn't see any sparks flying. i gonna go take it to a buddy of mine and see if he can find the issue.