I go through about a full quart of oil every 3 hours while cruising around 3500 rpm with a quick WOT run every now and then. After sitting a while i do see some blue smoke at start up, but never while running on the lake. Still have good oil preassure, valve cover breathers are clean and i still get 65mph @ 4800 rpm with an A impeller with no hesitations at all. So am i looking at bad valve guides/seals? or could it still be the piston rings?