[Jac Mac]

Agree with most of above, but with regard for the cam & lifters I would remove the rocker gear before priming oil pressure with battery drill on old dizzy minus gear, prime until you get oil up thru pushrods, then turn crankshaft at least two full turns with plugs out while still maintaining oil pressure with drill, this is about the most you can do to ensure cam lobes have some oil before refitting rocker gear for first start. I would also fill the cooling system with hot [ not boiling hot ] water and allow it to sink into the block /heads before starting. Make sure you have valves lashed, dizzy timed correctly, carb/s full of fuel & wiring correct so it fires first hit, allow it to run for a few seconds to ensure OK for oil pressure & correct sound then take it up to ~2000/2500 and hold it there for a couple of minutes, bring it back down to idle speed for about 10 seconds then shut it down, have a good look around for any problems, check ignition timing with light and if all OK try a longer run, Keep idling periods to a minimum.