Hi, when I bought my cruiser it had a weber carb on it and I wanted to go back to factory. So I went and bought an carb for that year model from sor. I dont know if I need a carb insulator or what gaskets I need. The carb I bought has already been rebouilt and all what else do I need? Where would the carb insulator go? Thanks, im new to carbs so bear with me...