93 hatch B18b1 with obd1 s300

Misfire started out as an issue only during warm starts and has progressed to doing it all the time. No CEL. Car is running very lean according to my AEM wideband which was not the case before. Also all 4 plugs are slightly white which agrees with the wideband.

Things I have tried so far:
Changed plugs
changed dist. cap, rotor, and external coil
new plug wires and coil wire
replaced gas tank (it had a leak)
checked fuel pump
fuel pressure is 50psi at filter
replaced filter
stiffer spring in BOV
Turbo still makes boost
unplugged MAP sensor car would not start
unplugged ECT sensor car ran worse
removed vacuum line from FPR and car ran smoother but still lean
in Smanager added 40% to fuel trim which put the AFR almost dead on but still had misfire
could not find any boost/vacuum leaks

 

you need to take your car to a tuner asap, also check make sure your injectors are working properly and check your timing as well

 

The car was dyno tuned for the current setup. What's the best way to check the injectors and timing? Thanks for the help. Also know of any good shops in or near DE?

 

To make things more interesting just went out started it and it worked perfect from a cold start. Any ideas?