Vaccum Gauge ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevemall · 01-01-2007, 10:17 PM

Hello

I have a Edelbrock 1406 with the vaccum advance on the carbs high port or pass. side port.

Does the vaccum gauge read manafold vaccum or should the hose coming off the gauge go to the same port as the vaccum advance?

Cheers

poorboy · 01-01-2007, 10:22 PM

Tha vac gauge should be hooked to manifold vac.

bryanw1968 · 01-01-2007, 11:07 PM

Quote:

Originally Posted by poorboy

Tha vac gauge should be hooked to manifold vac.

Yup. Otherwise you wouldn't be able to read any vacuum at all until the primary throttle blade cracked open enough to open the passage to provide vacuum to the vacuum advance on the distributor. That's how it works on holley's and demons anyway...

67chevemall · 01-02-2007, 11:39 AM

great thanks guys
just maken sure

01-01-2007, 10:17 PM	#1
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Vaccum Gauge ? Hello I have a Edelbrock 1406 with the vaccum advance on the carbs high port or pass. side port. Does the vaccum gauge read manafold vaccum or should the hose coming off the gauge go to the same port as the vaccum advance? Cheers __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

01-01-2007, 10:22 PM	#2
poorboy Senior Member Join Date: Jun 2006 Location: Oregon City, Or Posts: 758	Re: Vaccum Gauge ? Tha vac gauge should be hooked to manifold vac.

01-02-2007, 11:39 AM	#4
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: Vaccum Gauge ? great thanks guys just maken sure __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

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