Rich,
I intend putting a later alternator on my V8 so if you can get your current set-up running for now I'll have a better solution for the future.
your'e not too far away for me to visit if you want me to.
I can see Chris Yorks point, 11Amp alternator max. output, but 100Amp is way over the top. Remember these are '70s cars with little electric loading, I haven't done any load calcs. but 28Amp would probably be enough.
The most common with the right frame size is 45Amp, and that is what I will be using.
We currently fit 80Amp alternators to machines that need 5A to 19A just to run the diesel engine, and then have a/c, heater blower and six 55 watt work lights as well as the normal lights plus ecu's solenoids etc, etc.
btw, started working on UCA again, SD1 heads. 3.9 cam. SD1 timing cover fitted. Next job rebuild the ZF 22. All due to the advice from forum members. Many thanks.
Jim.