The carburetor that is on it is not stock. I bought an air and fuel filter for it and they were smaller than what is put on it. That tells me that the carb is not the original. I was told to look on the carb for markings. All I saw was k 1.02. I looked it up online and I couldnt find any specifics on it. Is that a good carburerator for a 289 or is there a better carburetor for my engine.?