I have a Internally regular Delco Remy on my 440 and its been there for 13 years. Never given me a problem, always given me 14.6 volts ...I just have to rod check when I start to turn it on at 1500rpm...Custom made brackets for this.

I installed the single wire Powermaster 140amp on my buddy's 72 Roadrunner about 2 months ago and he loves it too. Just remember to run an inline MegaFuse just in case something lets go and you don't run mass Voltage to the battery..Stock bracketswork for this but you have to remove the pulley & 3-bolts to rotate the housing to clear the rear terminal.