There have been plenty of people on here with Vortech and other superchargers that don't have any problems. You should check out the forums over at
The 4.0 Collective Forums - Powered by vBulletin, they're strictly 2005+ 4.0 mustangs over there, and there are tons of people with Vortechs, X-chargers, and even some turbos.
Merc - Sorry that noone has answered your post but we can only help with the things we know about. Hopefully someone 'in the know' on that subject will chime in, but until then try not to get too upset.

You might also consider asking that question over at 40collective.com
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Black 2005 Mustang v6, 5 speed, IUP, EUP and Leather.
Razzi 1/4 window scoops, Mustang GT Sway Bars, Flowmaster American Thunder Single Exhaust, Clear Front Turn Signal Lenses, Demolet CAI, X-cal2 91 tune, Hurst Comp/Plus Shifter, FRPP T-Lock, Ford 3.73 gears