I have a 1975 CJ5 with a 258. It has what I think is a Breakerless Ignition Distributor or BID in the book. After seeing a lot on the ways to upgrade other ignitions is there any way or use in trying to change this unit? Most of the posts say that pre 1978 are all point type ignition. Since mine doesn't fall into that I was unsure of the best way to go.