'71 Demon Ebay turbo kit

Hey all, I have a 1971 Demon with a mild 360 (cast '74 bottom end std. bore, ported cast heads, Torker II, 650 Brawler, Comp XE cam) Last summer I bought an Ebay twin turbo kit and before installing it, I'd like to know if anyone has experience with these kits in particular. I've seen some big single turbos in A bodies but never twins. I have a series of questions that I hope can be answered here.

- Am I building a timebomb?
- Intercooler or no intercooler? Air-Air or Air-water?
- how much boost on stock internals?
- Carburetor mods or replacement?
- For low boost, would I need water/meth inj.?

I'm certain there will be more questions to follow once I dig into it, but this is a good start. Thank you in advance for the replies and advice.