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Quick carb spacer question

Old 01-14-2019, 05:00 AM
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Default Quick carb spacer question

anyone run a carb spacer on a dual plane manifold on an ls1? Which works better? 4 hole or open carb spacer?
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Old 01-14-2019, 07:41 AM
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Gonna be hard to find a difference without an engine dyno. It really isnt gonna matter on a mild engine. I've run both on a variety of engines and never noticed anything seat of the pants.

Seems like you cant go wrong with open.
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