before i start looking at engine etc it makes sense to ask on here as its easier that taking engine apart and checking bearings, piston, pullies etc etc any ideas what it could be they should do 65 standard
They don't do 65 mate, clocks mights say so but it's no where near . If it feels slow etc , whip the transmition cover off and have good look at the belt and rollers , deglaze the clutch friction pads and generally give it a good service. Check the tire presures , and brakes for binding .