if you have an obd1 gsr ecu:
have me socket/chip it w/ an uberdata basemap
come to mainstream and have me tune it
done
uberdata is a rom editor (just like hondata). i'll tune out your afr at idle, part throttle lo-cam/hi-cam, set the vtec point to the best power throughout the rev range, adjust ingnition timing base and rev, cams (if adjustable), etc.
i don't recommend afc if you can go w/ a programmable ecu. it works by adjusting the signal the ecu sees from the map sensor that shifts you around in your fuel maps (which is what you're trying to do by adding/cutting fuel), but it also shifts you in your timing maps as well...you can't do both independently when you are hacking the map signal. it works ok for small tweaks and if you can't do a standalone ecu, it's about the only choice.