Install went well, car runs like dirt

[superfasteddie]

Okay here goes.
92 Ka-t , last night we installed my (very quick to arrive) Enthalpy ECU, 370's (new o-rings and pintle caps), N60MAF, new plug wires, new air filter, new plugs NGK BKR6ES gapped to 37*. Everything went in fairly smoothly, set the base timing to 20*ish. Not gonna lie, I have an ASP pulley, making my base timing questionable. All done, the car fired up after several cranks. Let it idle for 10-15 minutes, cleared it a few times and took the car out....eek. Idle is smooth at 8-900 ( I know, too high) but about the same as before the install, only smoother. Rolled on the throttle, boost builds and car falls on its face past 3500 RPMs, backfiring a ton and dumping smoke everywhere. Car is running super rich is all I can decipher. Gauge reads .50 bar so I know wastegate is working and boost is building, no air leaks, BOV works, but the car bogs down and falls flat=NO GOOD.
Any ideas? It was late last night so haven't mucked with it today. I was pissed, I went to bed..
NO FUEL LEAKS, no fuel smells.
I'm assuming the timing could still be off, we tried what looked like 20* and even 15-16*=same result.
Other mods
t-25
Walbro 255
FMIC
etc, etc.