Should the vacuum advance on a Y-Block be ported or manifold vacuum? This is for a 292 in a '60 F-100. I have a 1406 Edelbrock carb and I wanted to make sure I have the vacuum advance to the correct port... thanks!
By 1960 they had conventional dizzys. Ported vacuum goes to the advance. As always use a dial-back timing light and/or timing tape to check initial and total timing. Check the links on this link for all the Y-block info your stomach can handle. -Bigchief.
The conventional (both vacuum and centrifical) advance distributors for the y-block were introduced in '57. As a side note, there was a Holley Roto-Vance distributor available that did the same thing. It was just a little more complicated. Anyway, the service manuals for '57 Fords, Mercurys and Thunderbirds show distributor vacuum coming from below the carburetor throttle plates. So, however your Edelbrock carburetor pulls a similar vacuum will work. On my '55 Mercury, I'm running twin '56 Holley teapots with the distributor pulling vacuum from one of the rear ports. Again, vacuum source below the throttle plates. It's been running pretty nice!
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