Looking for Black FR500s on Black Stang pics!!!

[SonicStang]

Hey, who here knows whats the biggest tire I can fit under my 94 Cobra with the FR500 wheels?

315s I believe.

 

[Suspect]

o yea thats what i wanna tuck under the rear. i saw that falken has a 315/30/18, prolly get those since i cant find any street tires in 315 for an 18in. i really dont want dr's, i want something that will last longer. plus i have another set of wheels that i gotta get dr for.
only thing dont to the suspension is pro-kit, tokico d-specs, and mm c/c plates.