Some early SVT's had the 2-spring-bolt type flanges, so I don't think it's an MTX ATX thing. In any case, you need the graphite donut for those type flanges as a standard gasket won't work.
2000 SVT Turbo 295hp/269ftlb@12psi
#1 for Bendix Brakes Kits!
Knuckles rebuilt w/new bearings $55
AUSSIE ENDLINKS $70
Gutted pre-cats $80/set
A lack of planning on your part does not constitute an emergency on mine!