BillH wrote:
Opti's can run f'd up for months before they throw a code. Or they can throw one right away. Ya never know. My 92 ran for 4 months cutting out above 4k and no where else. Finally threw a code. The bearing was so bad thet the balls fell out n the workbench.

The radiator hose leak is suspect. I'd do a fuel press check and have the ICM checked before getting the MSD.
And I wouldn't get anything but an MSD.

You may want to do a search here, runs in my mind that someone got one for $420 not too long ago but, I may be wrong.