Service and tune up procedure is essentially the same as on your Sport. Valve clearances are the same, just fewer valves. TB balance procedure identical, close air bleeds, balance at 3-4,000 using the bell crank screw, kill engine, recalibrate TPS and re-start motor and equalise manifold depression at idle by opening the air bleed screw on the side with higher vacuum. Check but don't recalibrate the TPS before you start. If it is a long way from 4.6* check the throttle stop screw and linkage rod for interference.