Quote:
Originally Posted by Motorhead6
..... assure yourself that the distributor is also '57 up to match the vacuum advance requirements of the later carb.
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If
kheisler checks in again maybe he'll let us know...
The '56 and earlier distributor housings are shallower than the '57 and later.
They are also 'vacuum only' for the timing advance and have a flat side on the main shaft to index the rotor.
'57 and newer y-block distributors have centrifugal counterweights under the points to advance the timing with engine rpm, and a notch in the open top shaft to index the rotor.