The port engine lost an ignition module. Need some advice on a replacement module. Has anyone tried the Daytona Sensor module for this motor? Or should I try to find a stock module.

The pick up module in the distributor ??? or the ignition advance module???

The advance module.

You talking about the daytona sensor programmable marine ignition? Yes, I have. You can do some cool things with it. It also has a stock 525SC advance curve built into it as well.

I don't know anything about the Daytona module set up.

There are a few 525SC TB IV Modules( 814295A1)on ebay for $200-300

I assume you swapped modules between engines to verify it was bad???

Thanks Mild.. Griff, yes I swapped them and it was the module..