My Stealth has been in the garage for about 4 years without having been driven much. Now when you drive it you get a shudder. I put some Lucas fuel cleaner in it and I'm ordering a gas filter for it. Anyone have any other ideas as to what it could be? Tank is full so I'll have to drive it out to put new gas in. Only seems to shudder when under a load, like when you get it up to 3000 rpm in 3rd. Half expecting a backfire but have yet to get one.
KY