I have seen this on paddocks site as well and was wondering the same, at that price ill probably give it a try, I have seen a cheap kit on ebay being fitted and the part that goes over the cam in the dizzy was very poorly made, the 4 metal bars were visualy out when compaired to each other, this would give a different dwell angle reading on each of the cylinders, if its like that it will be going back.
Years ago I used a Luminition kit on a Fiat twincam, it was briliant.
Drew.