well i think u r in luck i have 2 foxes and am looking to make one run. i'm guessing i can get a fox into the 13's and maybe just maybe 12's. here is how start with a aba 2.0L block stroke it out to 2.2L 8.5:1 pistones, eurospec head 273 cam and a t3/4 hybrid turbo and a 5 speed and it should make 300ish HP on low to middle boost (8-15psi). then u need to make it go on a diet. drop everything u don't need or want. like a/c back seat u get the idea. the eurospec head is a non-cross flow head like what is on the fox now. the big proble is going to be fuel but if u get that far u will know what u need and don't. trubo manifold for the fox
http://www.atpturbo.com/Merchant2/me...egory_Code=BCS great site if u want fox parts
http://techtonicstuning.com/ well good luck on the fox.