Louis I had went to the track 3 weeks ago.I unload the car and it was running rough,so I thought it was due to the cold weather(was 12*)outside.When I checked the carb,the rear float was stuck,shut car off tap carb,restart alls good.Well I,m thinking when I shut it off,the gas ran into the cylinder and when I fired it up it pushed the cyl down on a up stroke,causing it to hydraulic and bend a rod.This is all I can think of as I,ve changed oil regularly and it,s been running like a top.:wack: