I'm pretty sure there is no problems with putting the SVT flywheel in. I'm pretty sure IIRC that it is 2lb's less and therefore there would be some gains to be had as the engine can spool up a little faster.
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 :)