pcv
X2 for what goat whore said
need pvc to get combustion byproduct out of crankcase.
best for longterm health of motor.
Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, GM HEI and Ram Air pans and RARE Long Branch Manifolds
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