Looking for Voltage reg, for Starflite

[AllenMercury45]

Hi, I'm looking for a Voltage regulator for a 1966, 80 HP. Starflite. Im not sure about the year. The motor runs Great. I have replaced the, Rectifier assy. Now the last thing I need is the Voltage regulator. Everything else checks out fine, as far as Voltage output.
Also, any connections for parts for this kind of an older Motor or info would be greatly appreciated.
Thanks