what programmer should I buy to do the following?

I would like to advance my timing, calibrate my speedo for 17" or 18" wheels, adju9st my speedo for a gear change and also to get diagnostics on knock retard and other important things while making my 1/4 mile runs, so something that will record onto my laptop.
I know they make software for this, I just haven't seen it for the ODBII

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97Z-28, 2.73gears, LPE CAIK, Magnecore 8.5mm wires, Bosch Platinum +4, Eibach Pro springs,
Kenny Brown SFC & tower strut brace.
Hooker LT headers and B&B TriFlo exhaust next.
(14.6@98MPH 1/4 mile bone stock run)

I have AutoTap for logging parameters and I believe two similar programs are AutoXray and Datamaster.

For programming I believe your choices are LT1-Edit and TunerCat.

If you still have the OBDII computer...I'm pretty sure your only choice is LT1 Edit.

Dan,

Is LT1Edit a logging/diagnostic or simply a programming aid.

You and I are using DataMaster for logging/diagnostic and TunerCat for programming on the 93 chip (eprom) cars.

Does LT1Edit do both those functions??

Perry