Like Jack mentioned, there's no reason to pay for a tune you're not going to use. If you have a good reason to run a trans only tune, then it's worth it to get it updated to work with the CAI. If you have no plans to ever use it, just leave it alone and save the money.
The other option is to go with something like a 91 performance tune instead of the trans only. I mean if you're going to pay for it, get something useful.
Hope this helps.
__________________
Bill Cohron - The Mad Doctor  
Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997!
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www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar!
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