Quote:
Originally Posted by F-word541
Yup. It still has the original Load-o-matic on it. Looking around for a 57 or newer one now. Is fine to run the newer dist. with the teapot carb? Just plug off the extra vacuum line?
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There is a profound difference in the amount of vacuum applied to the diaphragms in the 56 dual and the 57 up single.
Check out this thread which has those differences listed and also a link from Sal to the Holley 4000 carburetor manuals.
https://fordbarn.com/forum/showthread.php?t=142689