Fitech issues

I would recommend you try to get it going without the Fitech controlling the timing. Obviously you don't want to get into boost before being able to remove timing but it's sounds like you're still a ways off from boost if the idle is unstable. The IAC setting is super important. Don't skip that part and you shouldn't try to set it until the engine is warm which is the 170* default breakpoint on the Fitech. Your wiring all sounds sane to me.