Electronic ignition for Mercruiser 170 (1985)?

[scook]

My distributor shaft is pretty sloppy and a supplier out here (pacific northwest) says electronic ignition will really boost performance. Since I need to fix it anyway I thought this might be a good time to do it right.

Any comments on whether electronic ignition is worthwhile and if so recommendations on what to get? I'm figuring on gettting a high voltage coil, etc.

A motorhead friend is suggesting a local ignition shop that does all kinds of engines but the supplier seems to have a lot of experience with 170's - I'm looking for a little more input.

I really want to be ready this year - supposed to be a record Salmon run - want to be in good shape for that.