I bought a 038 mag missing the carb and air cleaner cover the saw runs I squirted gas in it. The dealer wanted to sell me a Bing never heard of them are they any good he said the Hk-42B it came with are total junk and leak gas but I can buy a used one for 40.00 can. Performance wise would this saw compare to my 630 ,266xp or 031. Any help on the choice of carbs greatly appreciated. I apologize for the typing a keyboards alot harder to run than a chainsaw. Kash