Quote:
Originally Posted by Daves55Sedan
I don't know if it has already been said, but the engine will not perform correctly by dropping in a '57 and later distributor with mechanical advance unless you ALSO replace the original loadomatic carburetor with a '57 or later style carb.
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cvicky, here's the reason why...
The vacuum timing advance canister(s) on a '56 or earlier Loadomatic distributor needs a vacuum signal of 0 to 5 inches of vacuum to control the timing correctly. The '56 and earlier carburetors provide that.
The vacuum canister on a '57+ distributor uses 5 to 20 inches of vacuum, provided by a '57 or newer carburetor.
By itself the mechanical timing advance of a '57+ distributor is a big step forward compared to the earlier distributors, having the vacuum canister working correctly helps even more.
If the engine currently has one of the older carburetors it may be possible to modify it to provide the vacuum levels needed for a '57+ distributor. See this link...
http://www.eatonbalancing.com/2013/0...-distributors/
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