The 2200 RPM 700R4 convertors are sold as a code "B29" convertor. If you Google B29 convertor you will find them available for sale. These 2200RPM stall speed units were factory stock on Covettes. They are the basic starting point for a mild 700R4 installation. If you are interested in one, PM me. I have a stock rebuilt B29 convertor for a 700R4 available for a very reasonable price. I ended up going with soemthing a little more agressive, I got a Hughes Pro Street 3000 RPM stall, 10" unit.