Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Ported vs. Manifold vacuum
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Old 08-16-2012, 08:56 AM
Sw1tchfoot Sw1tchfoot is offline
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You just have to try both and see which you like. I run full manifold vacuum for better idle quality and it seems to help with drivability, especially when cold.

Just sitting at the factory 10 degrees BTDC (Ford 302) then bumping the timing up and up, it's amazing how much smooother my engine runs with more timing.
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