Going from pre-70s V Reg to the newer post-70s V Reg Squareback

Great this all worked out. Hard to say, but the voltage might be a wee-bit more steady, but still bounces 14.1 - 14.4.
I ended up mounting the new Regulator to the top of the fender well. Thanks everyone for your help.
I always wondered if regulation of the + vs. - was better or worse in terms of stability of the voltage.