Yup, you'll pull the last of the oil residue from the intake runners for a few hours of operation. The reversion inherent to these engines will have been pushing the oil up into the intake a few inches while the problem was ongoing.
A good SeaFoam treatment will speed up the process, and wouldn't be a bad idea in terms of de-gunking the chambers and piston crowns a bit.
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1982 Z28 w/ '01 LS1 + T56, TR224 cam, Katech oil pump, JWIS chain
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