You and I are in the same boat... we're both already .060 over and needing a rebore. I called every machine shop I could find within 100 miles of Raleigh and not a one had the equipment to knurl nor would they recommend the procedure.
You can actually go .125 over but you need forged pistons at $500+. Point is, the walls can easily take .080 over so I can't find any reason to hesitate. Just hope another .020 will do the job.
Who's doing your engine? I'm getting ready to take mine to John West in Raleigh. I was very impressed with their shop and the man who would be doing the work. I'm confident they can do the job right.
