Your issue sounds like a classic case of old gasoline varnishing up the valves causing them to stick. Did you clean out the gas tank and lines before adding new gas? Better check to see if the affected valves are not stuck or sticking before replacing the pushrods.

Last edited by Phak1; 02/19/2026 1:38 AM. Reason: Typo

Phil
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1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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