RE: carb relocation
On reed valve engines you can place the carb about anywhere on lower crankcase. You can even add carbs. I have seen as many as 3 carbs on a Mac...go-cart engine. What did you have in mind? Most people do not like the carb sticking out so far. Yes elboes can be made...but it takes time to get it all right. Good luck, Capt,n