It seems the mainstream thing for the OBD1/ speed density cars w proms to do is change to a different pcm setup. What/ who are the options for my car- I have a 383 shortblock that im going to put in but my big decision is what direction to go with the computer/ tuning. I have pcm 4lesss tunng now w/the afr heads & cam.
thanks all in advance..

 

http://www.tunerpro.net/. Is a free/donation editor that supports the 93. You'll still need chip programmers and adapters or emulators from moates.net.

If you're not looking to do a lot of tuning, just stick with the mail order tunes or find a local tuner/dyno that can still do chips for you.

If you're looking to upgrade the PCM, there are writups on doing the wiring to the obd2 lt1 late models, or you can jump over to a modern Holley system that will lighten your checkbook but allow most novices to tune.