Why do it? Just put a centrifugal blower on your 98 for even more power. Add forged internals when necessary. You do have to gear a centrifugal blower car a little different than the 03 roots car. Sorry, I know that's not what you asked.
Actually Shawn and I will be installing a 03 Blower and head set-up in onerichrunners (Shawn Ellis) 97 Cobra very soon. The heads are beinng ported by (DTA), 9.1 pistons, Crower cams, and long tubes. We will be going with coil packs instead of the coil on plug. Instead of the cast iron block Shawn decided on SHM Aluminum block with all the goodies. After its all said and done he will be looking at $7k, but it will be one wicked street Stang..PBWY
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