Help please....I have installed 60 Amp alternator in 71 Z. Should I use 260Z voltage regulator? Thanks

Not unless you want too. The volt reg just determines when the battery needs charge. Its just a switch. The 60a alt will charge the battery faster. Kinda like a toilet flush valve that turns the water to the tank on or off. The speed that the tank fills doesnt matter.

AFAIK, the Voltage Regulator switches based on voltage, not amps. I doubt it cares about the amperage much. (But I am no expert)

Thanks much!!!! Accessories are working much better with the 60 Amp!!!