Proj 07 Z
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An oil or vacuum leak will take all the fun out of any performance gain. We were fortunate that the intake had been resealed at some point in the last couple years, so the gasket cleanup wasn't too bad. Be sure to cover the lifter valley, coolant passages, and intake runners to keep debris out of the engine. We removed all of the old gasket material from the heads and deck to achieve a proper seal. View Related Article
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