Quote:
Originally Posted by fiddy6
I thought I'd post my results of using a Holley 4000 Teapot with a 60's y block distributor.
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The original setup had the vacuum line from the front of the carb attached to the distributor, it worked but timing was all over the place and it idled hot in my opinion.
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The 60's distributors were designed for a 5 to 20 inches of vacuum signal from the carb, not the intake manifold.
The (unmodified) teapot carbs create a vacuum signal of 0 to 5 inches.
The modification procedure from Eaton Balancing noted above by
HRR is the way to go.
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