Just what I allways say. More amps just to guarantee the alt capacity to feed everything the car needs at the lower RPMs as posible... i.e.
AT IDDLE
This will leave the batt out of the game as much as posible and alt won't be recharging it constantly after being sucked out, which will be a load won't be running throught the system anymore. The constant battery charge status when reving up is what actually burnt out the bulkhead paths along the years. Saving this will get peace to the stock design charging network, for those who want to keep it.
Terminals used on the Mopar "fleet cars" such as Taxis an Police which usually came out from factory with more load requirememts hence bigger alts ( leece neville ) where the Molex kind ( big ones, can't recall the size ) and run out of the bulkhead. This terminals are more amps capable. However per 72RoadrunnerGTX experience, he made at dealer shops a straight wiring without terminals, throught the firewall.
Momentarily I made the same around 15 years ago, straight wire throught the firewall, HOWEVER will be changing to the "quick disconect link" setup ( in 10 gauge ) when reassembling my car. The ones used to trailers, to keep the disconect versatility. Althought I have not removed the bulkhead paths, but just being parallel to them.
View attachment 1259929
And as mentioned, get an alt able to source anything between 45-55 amps
AT IDDLE and your charging system will be gratefull and in peace.
Usually per what I have checked on most of alt specs with Y winding stators design ( Mopar ) the iddle capacity use to be at 55-60% of its full output capacity. So a 100 amps alt could be on 55-60 amps at iddle CAPACITY, which doesn't mean will be SOURCING that. Just if is requested. This changes a bit also depending on alt pulley diameter.