The 302 Monster miata takes everything from a Fox-body donor car, 302/T5/8.8 Rear. I havent heard of them using the 7.5 in any of em. Also, the CST-V rears a STTUUUPID $$$, and are very prone to breaking, so i wouldnt consider that, prolly better off with a 12 bolt if ya want chevy shit in there