I have a 1999/502-415HP-MPI with a bad distributor. I alrady have a MSD6M box ,what kind of MSD distributor would I need

Ken

order the pro billet marine distributor with the adjustible collar.....This way if ya due any more hop ups for the motor it will be the last dist you buy...................MSD buy the way

you can use a replacement for that exact distributor. They are not too expensive, or you can buy a replacement from MSD that plugs right in. I think the #8366