The Fox would be cheaper, and lighter, but my dyno man Randy Haywood, who runs Fox bodies in drag racing and hold a few records, indicates getting the SN95 down into the high 2700-2800s is no problem. Since the car will have to weigh more than that to race in ITR then we'll be okay as far as "lightness" of the SN95 is concerned.

Allowing the 7.5" SVO axle (I used to have an 86 SVO) is not so bad since it can be sourced from other Fords as mentioned. But, it does require some hoops to get that approved and since the V8s are not "liked" in IT it presents another barrier. Best to shoot for the SN85 platform since it "fits" with no special allowances and maybe try some others later.