I will be picking up my IPB 14 soon and I would like to power it with a new DF20AS. I know they are EFI motors. I can get a deal on a 2005 DF 15 carb. motor, and as far as I know they are basically the same motor other than the fuel system. my question is, can the 15 preform like a 20 with mods to carb or any other mods? any input will be much appreciated !