you have a
10SI internally regulated alt .... 55 amps is fine, the original 30 and 35 amp generators ran the same equipment plus more, if adding various modern appliances you might want to go to 65 amp or even a 12SI, 78 amp, but 94 or 105 amp alternators are unnecessarily expensive and scarcer, that's what I put on my RV bus because it'll have 2 start batteries and lots of other draw
reading a bunch there at
Mad Electrical might help you understand the system better Larry, I'd say it sounds like the system is working, but something is wired wrong to cause the gauge to read the wrong place in the circuit, need to track the wiring
Bill
