The oil pump should turn smooth, no bumps, hard spots or clicking. Was the oil pressure gauge steady, it may be dampened too much to pick up small fluctuations. Did it make noises when turning with the drill? If I remember the noise video, it was at half speed.
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1968 Firebird 400 RAII M21, 3.31 12 bolt, Mayfair Maize.
1977 Trans Am W72 400, TH350, 3.23 T Top
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