Well, I think its time to either rebuild or replace the engine. I am getting alot of Blow-by from the oil dipstick tube, It's running rough and spraying oil onto the headers. A tech told me the only thing he could think it would be is bad rings. The engine has 170k on it and I knew it was coming but not this week just before Corvettes at Myrtle Beach on Saturday. I have managed to 'seal" the dipstick tube so it is no longer "leaking", but wonder if it is safe to drive a 500 mile round trip as is. My budget for repair is fairly limited. Anyone have any suggestions ? Anyone had any experience with CMengines (carolina machine engines) ?