1963 Chevy Ii Station Wagon Tune Up Engines
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While fitting the necessary line to the vacuum advance, Mena explained that some cars can surge at low speeds with the advance hooked up. Putting a timing light on the engine with the vacuum advance hooked up revealed 52 degrees at low cruising speeds. That much timing is fine for cruising with a mild engine, but Mena explained that hopped-up engines with aftermarket cams and cylinder heads oftentimes need an advance that’s specifically tailored for the application, otherwise too much timing can cause surging at cruising speeds. View Related Article
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