ANSWERS:
(1) Tires: Hoosiers - Front -255's / Rear- 275's
(2) Spolier: Me and a buddy made the spoiler here in my shop . (I thought it might help with stability, I doubt it helps performance; it's not an air dam. I've ran several times without it and maybe I will next year. I've only used it at Mojave never for road race, which is the car's primary use.)
MORE:
The entire car was born here in my shop about 10 years ago. Bought it from Shelby American in Vegas back in 2001 they delivered it (rolling chassis) 2003, took 3 years to build and finished it in 2006. ( Took me about a year and a half to paint it.) I have about a zillion pictures of the entire process plus some bad news pictures from when I buried it in the wall at Willow (circa 2011). but took her home and fixed her up; Mauh sure wasn't happy about that whole ordeal!!!
Anyone that may be interested in viewing this car's portfolio may send a request E-mail to
Virgil@virg.biz and I'll send you a dropbox invitation and you can take your time to go through the folders that may be of interest.