69′ Roadrunner build help

So i bought a 69RR roller a few weeks that i plan on restoring, my 1st plymouth im excited! it needs alot of work though, but my uncle is gonna help me with the bodywork, so in the meantime im trying to buy parts for it. the goal is for it to be a high performance car, but still a street daily driver. anyway i have a bunch of questions, but only a couple right now, figure id make this thread instead of flooding the board with simple questions.

1)i was looking at alternators and the site i was on had 3 different types:single groove pulley,double groove, and 1 wire.i think the double groove is for trucks right? my uncle told me i should go with the single, but the site says..
"1969 & Earlier Vehicles Must Ground 1 Field Wire To Fit O.E. Harness
Perfect for Applications with Air Conditioning, Normal Stereo Systems,
and Most Any Other Normal Accessories"....so im guessing i need the "1 wire" then unless i change the wiring harness?

2)i wanted to get a chrome carburetor and so far the best one ive seen is the Edelbrock 1407 750cfm w/electric choke. would this be the best fit for my car? im putting a 440 magnum v8 in the RR and it has the air cleaner housing with the 2 spouts on it, would i have to take that off?
Author: Nightmare