The carter runs so much better than the "B" it's worth replacing the diaphram once every year or two would only take maybe an hour or so to do and you can get the rebuilding kit and have it setting on you're shelf. I had a "B" on my 216 when I first rebuilt the engine and was not happy with it ,after talking it over a few times with people here I got a carter W1 and rebuilt it and after that the engine ran great.I just rebuilt a carter YF to put on my 235 I just put in my truck ,I have to build the brackit for the cables,and that will go on in the next week or so.


Pete