G'Day Calothrix, I have dealt with Carlos, I bought a cylinder kit from him which is questionable quality, the carb and exhaust were good, his prices are good and he does communicate if you have a problem. I guess what I am saying is beware what you are buying, some may be good and some may not be. With regards with the cylinder kit We have got it going with a lot of help from Shaka and zombie, without these two blokes helping me I would have been lost long ago.