Thread: the build
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Old 06-22-2021, 11:32 PM   #30
Tinker
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Default Re: the build

Quote:
Originally Posted by Ken Henry View Post
There are two vacuum signals coming from the 94 carb - venturi vacuum related to RPM and manifold vacuum related to load. These are combined through small passages into a common port/vacuum signal going to the distributor. This is the only signal controlling the ignition advance - there are no weights or anything inside to provide a mechanical, RPM-based advance curve.


Adding the second carb changes the nature of these signals, so it will/may no longer function according to how the engineers originally designed it.

Get a mechanical advance unit from charlieny or bubba and forget about it. PV 3.5 on dual 94s
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