You might look at this link unless you already have.
http://www.mtfca.com/discus/messages...tml?1291584381
From most of the stuff I've read about the KR Wilson equipment is that it will require a reamer to do the finish work. They wanted a machine that anyone could do the job with but the bar wasn't all that accurate for the average mechanic to do any finish work with. Modern Tobin ARP stuff would make the job easier for production work. If your just doing a few then the KR Wilson set up was OK but time consuming and you have to have all the parts to do the job.