Thread: All Things Pontiac
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Old 06-25-2022, 03:13 AM
TRADERMIKE 2012 TRADERMIKE 2012 is offline
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Notice: 1959 389 Valve Stem Vent Diagram, #10 that Pontiac used a vent at what looks like the Intake valve? Anyone that has one of these in the past, can you explain why? Did they vent the Exhaust valve as well?
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