Hey everbody, I have and OMC Cobra 3.0L GM. I need to replace cap rotor, points, condensor. Question: How do I know which parts will match my distributor? They are clueless at the auto parts store (they want a vehicle to match it to) and the selection is very limited at the marine store. What kind of car was this engine used in, and if I get cap etc. for this car will it work on the boat? Thanks for all of the help!