[PsychoBillyCadillac]

Funny, thats the same thing my Dad said when I put the question to him. He is an old gearhead from way back and told me that the gas today is basically "piss" compared to the higher octane leaded fuels which these older high compression engines were originally designed for. Just as you mentioned, over time the newer unleaded fuels supposedly can deteriorate the valve seats as well as other components. Anybody else ever have this happen to an engine or hear of it?