Just a comment: I am the original owner of a 1980 L82, the intake manifold is aluminum and was and still is painted silver. If my memory serves me correctly the '81 L81 had the same paint scheme as my L82. Black finned aluminum rocker covers, silver painted intake and Corporate GM blue for the...
TDC
Let me toss this one out, it is possible that the outer ring of your harmonic balancer has been spun slightly, causing the timing marks to be off. I have not ever seen this phenomenon but I have heard of it happening. My dad did own a '58 Pontiac that came from the factory with the...
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