Remington super 660 is it possible to switch out the carter carb for a tilloston hl159a? I have 3 big remingtons 1 660 2 754 and would like to keep all the carbs the same plus I'm struggling on this carter carb rebuild. I see on the hl159a rebuild kit kt says for 660 so does that mean late model 660 saws came with the tilloston hl159a???