Here's an email from a very local Mustang dyno at a VW Shop:
Jason,
We just recently sent our Horiba wide band A/F
meter back for service and would only be able to
provide a narrow band analog signal for mixture
readings. Actual tuning would also be up to you,
as we do not do work on your type of vehicle. We
can provide our dyno service @ $165 per hour, with
A/F narrow band sensor output service @ $30 per
hour. Our normal wide band unit rental is $75 per
hour, for comparison.
Like I want narrowband O2! Besides, I am not asking these guys to port my intake - A/F tuning should be pretty generic across make and models. Just find the spot with the best power. D*cks.
Most places charge $125 - $150 around here as far as I can tell. Some add for A/F, some don't. No kidding, ouch!