Congrats on the sell! It's a beautiful car!!!
Question, with all the work that went into this build, why not mini-tub it for a 315 or 335 rear tire? A 255 rear tire seems rather narrow for a 600hp motor. Especially when a 275 fits fine and a 285 would have fit with very little work to the OE sheetmetal.
Again, congrats on the sell!