Where do you find a green cup? The Standard Motor Parts rebuild kit only had two cups, and one was to big. I put a nos power valve in it, but there is a lot of crap up stream that controls it. There is a box on the inner fender that the potting is running down the fender, so it might be dead also. There is just to much stuff that might not be working, and can't be found. I was just wanting to try an older carb, but wasn't sure what year would be good.