[DanEC]

OK - after I answered and saw some other posts I began trying to remember what you were having built exactly as the FIA and maybe slabside do have a different trunk assembly. And I believe ERA has built a few 427 street cars with a replica of the tire tray trunk configuration similar to the original cars - an extra cost option I suspect. I don't have a spare in mine so I'm afraid I can't be of much help. I keep a tool kit with a can of puncture sealer in it. I'm not sure much more than a smaller 75 series radial would fit in there very well. A min-spare is another option.

Hopefully someone with some experience with this will chime in.

Good luck