Hello and thank you for taking the time to read this. I have a 1993 Chris Craft Contender wih twin 5.0 Cobras. I just purchased the boat (it was taken by an engine replacement company that rebuilt the engines but when th owner was unable to pay the mechanic got title and I purchased it from him. I had my mechanic go over everything and the moters purr like kittens; however; when I first took it out one or the other engines would surge at idle and sometime cut out. I was wondering if the three year gas that is in it could cause these problems and if so , what I should do. Do I just put some Stabil in it and use it up or is that dangerous. Any comments would be greatly appreciated. Thank you.