This guy is using a 1/8" spacer with pf01...I may have to consider that.
http://www.svtperformance.com/forums/2013-shelby-gt500-413/914171-found-20-lbs-road-racing-wheels-fit-13-gt500.html
Yes I have the same question on the pf01. I have read they don't clear, but there are numerous widths and offsets being used, and I'd like to know exactly what was tried, and exactly where there was contact. Spoke? Barrel?