HEI Wiring Question/Is This Right

[72 Cheyenne K20]

I have a 72 Blazer w/a 350. Hei is already installed but the wiring is really funky. They had some kinda vacuum module hooked up between the dizzy and the carb. It had wiring connected to it that went through the firewall to another module and a hot lead to the fuse block. I unplugged it from the fuse block while the engine was running and there was no change, so it's gone. Now, I just wanted to make sure that I'm hooking up wires correct.

1) The pink wire that comes out of the firewall that splits into 2 yellow wires (1 to the coil and 1 to the starter) needs to be replaced with a 10 gauge wire that goes to the positive side at the dizzy and no yellow wire to the starter anymore.

2) The only wires going to the starter are the positive lead from the battery and the purple wire from the firewall.

Is it that simple or am I missing something. Any help would be great.

Thanks, Scott