I was able to do some searching on the internet and cross referenced an OEM part number (383444) with a "NAPA Echlin" igniton coil (IC10) that is on my 1982 OMC 2.5 liter. Done some searching with both number and found a matching coil at Autozone. Now I need an OEM part number for plug wires. About the only thing I know is that they are 8mm. Anyone have that number? Also, how do I know which ignition system I have? Pertronix, prestolite...? I saw Delco stamped on the plate under the points and condensor. Is that is? Delco?<br /><br />Thanks,<br />Medic