Re: OMC 3.8 distributor
That's going to be a tough one to find. IBM7014 I suspect is what you have.
There is no electronic version and no Pertronix for it. You're stuck with points.
You might look for a guy that works on old points distributors and get him to replace the weights and springs.... or find someone that can get you the parts at least.
That distributor was over $1000 anyways from Mercruiser or OMC so don't look too hard for a new one.
FYI
Keep in mind when you go to install that distributor, it's like no other....... You have to have the points cam on the right type of bump for #1 TDC. The OMC manual says nothing about it.
Download the Merc manual (#6 I think?) and follow the Merc 229V6 distributor install instructions.