Ok you now have the engine number I cyl at TDC on the compression stroke. Simply place number one spark plug wire where the rotor is pointing and go from there. the engine wont care which position the distrubeter and rotor are located. It only want,s spark to ocuur when it has compressed fuel in the cyl with the valves closed. Ive simply moved the plug wites around on lots of engines. Ive probably made some other mechanic pull their hair out when changing the plug wires or dist cap