Looking for a Crypton Tuner, either the 336 Cruise Mate or a 500 or 600 series, I seem to be doing a lot of classic cars. I have the Crypton carburettor balancers, dwell meter etc but I think I need to up my ammunition. I missed a good one on ebay which was in Manchester recently which was fully operational and had a four gas analyser. I can manage ok with what I have but the extra capability will give me the scope facility and I like these machines.