Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#3
10-20-2023, 12:29 AM
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My Solid lifter motor builder performed Cam break in with reduced valve springs as a measure to assure free spining lifters during the critical break in period on the dyno. The n installed the inner springs to perform power pulls.
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69 Los Z11 68 SS/RS 396/325 68 Los Z28 
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