I ended up buying the 94a 12si model. I would've gone the 130 route but there was an issue with the clocking. I also bought #8 wire for the charge wire. Was going with 6 but that stuff is crazy expensive and #8 is what they recommended anyways so it should be good. There's not that much draw on the system anyhow. I bought a 4 fuse block and a couple relays. Now I just have to muddle through the installation.
I have the SI alt on mine also, I did mine a long time ago before I knew about the 130's . When this one goes out I will be going to the 130. I did the 130 on my son's 68 Nova and it works great I get my wire from the scraps from work is why I go as big a wire as I can. I know the wire costs a lot Did you get enough relays to do the headlights, to make them brighter? I will be doing that next on mine after I finish the interior