Ok since we are asking what if questions?

Would I stand to gain or lose if I put a mustang 65mil TB on my Tour?

Mods are.

SVT UIM
open air element
MSDS headers
MSDS Y-pipe
SVT exhuast without the resonator.
Currently a SE TB that is optimized. ( Had tremendous results from that )

Green 96 mystique gs 4cyl mtx 16.9 in the 1/4 mile @102500 miles 95SE in Midnight Red MTX MSDS headers and y-pipe SVT exhaust SVT UIM Optimized se TB. Full pre 98 SVT body kit 15.741 @ 87.73mph :)