>310k now. Idles, accelerates and cruises perfectly but power has been gradually fading over the past 9-12 months. Guessing output may be 55-70hp (62-80%) at this point. No evidence of blowby via the crankcase breather element (a.k.a. air cleaner sponge) and doesn't consume significant amounts of oil but plan to run a compression test before checking for t-belt slippage. (suspect piston compression rings) Intake seems louder which is usually a sign of belt slippage; but could simply be that I'm flooring and near-flooring it far more often. A/C is unmolested and works fine but is rarely used. (not a fan of A/C -- have seven+ months out of the year to be cold)