after my little LS1Edit cable fiasco I have decided to skip rebuying Edit and purchase a Predator (it does 98% of what I want), I have a few Q's though that I hope you guys can answer....

1. can you do "custom" tuning for 87 octane or do you have to use the 91 octane tune ??...I ask b/c gas is still EXPENSIVE in CA

NO-91-93 Octane only-you can adjust WOT timing only. Will ping at cruise with lower octane...

2. does it completely remove TM ??

Almost all-close enough

3. how high can you set the speed limiter....at least 125 ??

YES

4. can you adjust torque converter lockup ??

NO-Why would you want to?

5. Granatelli says you can "create custom tunes on your computer and upload them to the predator"....how ??, does it come with software and a link cable to do so or is it just editing a text file or something ??

No-Dealer creates custom tunes and emails to you-you load per serial port on unit

6. does the tuning affect tow/haul mode or is that left alone *or* can you choose which mode to program...kinda like having a stock tune and a tow/hual *** tune

There is tranny adjustments for tow-haul and non tow-haul / you can adjust each differently if you wish

I have already d/l'ed the owners manual and read it cover to cover...these were the questions that the manual doesn't cover

thanks in advance

Why not just get your Edit situatiuon fixed? The Predator does hardly anything compared to Edit, and must be returned to the dealer for custom tune, IF they have a custom tune, or CAN make one for you. I have inquired about one for my truck, and was told they didn't have a tune, but would call me, so they could make one. That was a year ago, and two emnails ago, and nothing since.
I think I may have read about your cable fiasco. The dog ate it or something? It was discussed on the Edit mailing list, if so. Just get him the info he needs, and he should fix you up. Sam