Originally Posted by
Frank Volker
Gene, I can't recall if there was a difference between FA and FB standpipe height. I know the (brass) dump tube height (in throat of carb) is somewhat critical. In both the FA/FB, the top of the dump tube was moved below the center of the bore to compensate for the rise of the fuel as it entered the air stream. Running the dump tube height at the center of the bore resulted in the bottom cylinder in each cylinder pair running much leaner than the top cylinder. I suppose someone with an original carb setup on an FB, FD, or 44 could provide the correct measurement--assuming that they have the correct carbs.
Yes, it's great to see people kicking in on this project. It's like "Back To The Future" with the volume turned to "11".
Frank V.
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