Give Don LaSota Racing a call. He did the tune for my 95 GT with a Kenne Bell over email and it’s spot on. 94-95s are his specialty. I later had the car on the dyno here locally and was there to have the guy tweak the tune and he told me, “whoever did your tune is apparently a much, much better tuner than I am.” He said that my AFR ratios were absolutely perfect and there was really nothing much to tweak on it. I later added AFR heads, a cam, and a new lower under the Kenne Bell and asked Don to re-adjust tune and he told me it was fine like it was. Took it back to the dyno and was making an additional 75hp at the wheels with AFR ratios still spot on. He’s a real wizard with the 94-95 ECUs.
Edit: FYI, I have a TwEECer RT unit in my 95 GT vert.