Hot Rods 181 Mercruiser L4 ignition

I need a new distributor for my 181 Mercruiser L4 in my Model A. Anybody had this problem? It's a '92 motor with a T5 behind it.

 

I have swapped several Mercruiser engines into cars,, the marine dist is not curved correctly for street driving. Ended up using stock car dist with no problems, just saying.

 

Send me your old one and i can set up (using a new mallory core) a new unit, single point with proper curve $ 175