George,
Foose was using Pirelli Trofeo R tires before he switched sizes. If he's still using Trofeo R's, the section width of a 285/35-19 is 11.4", so an 11" wheel isn't completely out of range.
Just to further complicate the issue of offsets, keep in mind, one manufacturer's 285 could be +/- 6mm different in width from another manufacturer's 285. What I'm referring to is the real "measure with a caliper from one sidewall to the other" width.
Also, FYI: American Republic wheels recommends an 8" wheel on the front with 22mm offset and an 11" wheel on the rear with 13mm offset.
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