flooding out FC3S4 N/A

[Shadow24v]

Im working with the guy selling me an 86 FC3S4 to get it running before i have him paid off. initially this is what he said:

It ran pretty good, had good power, ran a little rich, idled good but would try to die out after revving it, it's a bit rich I think. I did a compression check, twice, came up w/ 80-90 psi on all rotor faces (FSM says 85 minimum, my TII runs on 50-60 psi). It doesn't run at the moment because the CAS (crank angle sensor) is bad and I haven't went and got one to replace it. We got it in at the junkyard not running, and we've got it running several times, then it won't run again. Probably partially due to the bad CAS, partially due to whatever is causing the smoke.

I secured a used CAS and he swapped them but

I got the CAS today, stuck it in, it fired a bit but wouldn't quite catch. It seems to just be flooding out almost instantly, I dunno if an injector or two is stuck open or what. Stupid car lol

He's got a T-II FC for his own and is a competent mechanic. I just picked up some known good injectors to send to him, but does anyone have any additional thoughts on what might be causing it to flood that fast?