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  1. Compression Specs for LAP 2.2 Ecotec?

    Engine Mods
    I'm getting pretty close to pulling the trigger on a supercharger kit, but want to check compression first. I've been Googling this for a while, but I've found varying answers between 120 psi all the way up to 225 psi. Does anyone know what the "perfect/factory" range is, and the "still...
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