Anyone know much about these units. Mine worked fine until I changed from the points ignition distributors to Mallory YLM 624 AV units. The engines are crusader 270 and the original distributor were Delco/GM. Is there a fix/change to get it working again?? Boat is a 1974 Viking 33.
Look for a Chris Craft site or forum , they used those way back in time and maybe someone can help from there