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88 coupe · 06-25-2007, 03:04 PM

Hi Guys,

oldsmobile1915:

According to my Motor's Manual from the era (not as complete as my '49 Olds FSM) Olds first supplemented the automatic (centrifugal) spark advance with the vacuum unit in '36.

Can you tell me if the vacuum source was the intake manifold, or ported from the carburetor riser, just above the throttle valve?

Thanks, Norm

06-25-2007, 03:04 PM	#3 (permalink)
88 coupe Junior Member Join Date: Oct 2004 Location: Southern CA Posts: 737	Hi Guys, oldsmobile1915: According to my Motor's Manual from the era (not as complete as my '49 Olds FSM) Olds first supplemented the automatic (centrifugal) spark advance with the vacuum unit in '36. Can you tell me if the vacuum source was the intake manifold, or ported from the carburetor riser, just above the throttle valve? Thanks, Norm __________________ I love the reaction when they find out it's not a Big Block Chev . . . . . . . It gets even better when they find it's all Olds.