I have the Thexton 362 GM computer controlled carburetor tool kits that includes the 2.5mm hex, 2mm, 7mm, and 10mm double D sockets and also the Thexton 370 gauge kit that includes gauges to set lean, rich screws and idle air bleed valve for sale on ebay for $12 each shipping included. Search for Thexton 362 or 370. These kits are getting hard to come by at such a reasonable price as this. The 362 kit can be found for $35 plus shipping at some internet stores.