Thread: Distributor vacuum: Ported vacuum vs. full manifold vacuum: Which is better?
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Old 05-11-2010, 05:54 PM
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DanEC DanEC is offline
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Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
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There's no advantage to ported vacuum. With full time vacuum the engine will idle better, run cooler and get somewhat better mileage. Having said that I can't believe I'm going to an all mechanical advance distributor on my engine. Is it true that the vacuum unit won't fit with the factory type expansion tank on an FE?

Dan
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