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toolboxchev · 02-18-2018, 11:42 PM

The larger center port is for the PCV valve on the Valve Cover. There is a port on the back side of the carb for Manifold vacuum if needed.

02-18-2018, 11:42 PM	#7
toolboxchev Registered User Join Date: Jul 2015 Location: 2nd left past the stump on a dirt road. Posts: 2,629	Re: Question About Edelbrock Vacuum Ports & Charcoal Canister The larger center port is for the PCV valve on the Valve Cover. There is a port on the back side of the carb for Manifold vacuum if needed.