found cam specs for V12 M120 engine, need lift specs

cam specs for V12 are the same as the 6-cylinder engine. intake valve timing is 180 degrees duration @ .080" lift points exhaust valve timing is 197 degrees duration @ .080" lift points typically the exhaust duration is extended, to overcome a relatively low flowing exhaust port, or exhaust restriction, in this case being the factory exhaust system with 2 cats, and 2 very large mufflers. Pontiac was big on this back in the 1950-80 era, they'd typically add 8-12 more degrees exhaust... found cam specs for V12 M120 engine, need lift specs

cam specs for V12 are the same as the 6-cylinder engine.
intake valve timing is 180 degrees duration @ .080" lift points
exhaust valve timing is 197 degrees duration @ .080" lift points

typically the exhaust duration is extended, to overcome a relatively low flowing exhaust port, or exhaust restriction, in this case being the factory exhaust system with 2 cats, and 2 very large mufflers. Pontiac was big on this back in the 1950-80 era, they'd typically add 8-12 more degrees exhaust...

found cam specs for V12 M120 engine, need lift specs

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