Anyone familiar with Edelbrock carb vacuum ports - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nele22 · 07-09-2013, 06:09 PM

Just a quick question.

My Edelbrock has both the passenger and driver side vacuum port plugged off. This is on a 350. Is this correct?

**LockDoc** · 07-09-2013, 06:24 PM

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I have my distributor vacuum advance on the driver side one and the passenger side one is plugged. I have my trans modulator connected to the intake behind the carb.

LockDoc

Lattimer · 07-09-2013, 06:59 PM

Drivers side is manifold vac, passenger is called "timed" vacuum. Passenger side port only sees minimal vac until the throttle is open. Which one you use depends on how fast you want your vac timing to come in.

swamp rat · 07-09-2013, 07:30 PM

If your distributor vacuum is hooked into a port threaded directly into the manifold then your fine.

nele22 · 07-09-2013, 08:29 PM

Quote:

Originally Posted by swamp rat

If your distributor vacuum is hooked into a port threaded directly into the manifold then your fine.

Okay. What would this look like?

67ChevyRedneck · 07-09-2013, 08:44 PM

Look at your distributor, the canister coming out of it should have a vacuum hose connected to it, follow that hose and make sure it is connected to something on the intake. That would mean it has full manifold vacuum, most people use the ported vacuum on the carb.

swamp rat · 07-09-2013, 10:10 PM

Quote:

Originally Posted by nele22

Okay. What would this look like?

Probably an elbow fitting threaded into the intake manifold, on my Edelbrock Performer its right behind the carb.

nele22 · 07-09-2013, 10:12 PM

Quote:

Originally Posted by swamp rat

Probably an elbow fitting threaded into the intake manifold, on my Edelbrock Performer its right behind the carb.

You all are good! That is exactly what I have.

07-09-2013, 06:09 PM	#1
nele22 Registered User Join Date: Aug 2012 Location: Ashland Posts: 124	Anyone familiar with Edelbrock carb vacuum ports Just a quick question. My Edelbrock has both the passenger and driver side vacuum port plugged off. This is on a 350. Is this correct?

07-09-2013, 06:24 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,818	Re: Anyone familiar with Edelbrock carb vacuum ports - I have my distributor vacuum advance on the driver side one and the passenger side one is plugged. I have my trans modulator connected to the intake behind the carb. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

07-09-2013, 06:59 PM	#3
Lattimer Registered User Join Date: Jan 2013 Location: Mickleton, NJ Posts: 1,776	Re: Anyone familiar with Edelbrock carb vacuum ports Drivers side is manifold vac, passenger is called "timed" vacuum. Passenger side port only sees minimal vac until the throttle is open. Which one you use depends on how fast you want your vac timing to come in. __________________ Shawn 1970 Chevy C-10 SWB, 350, TKO 600 5 speed My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881

07-09-2013, 07:30 PM	#4
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: Anyone familiar with Edelbrock carb vacuum ports If your distributor vacuum is hooked into a port threaded directly into the manifold then your fine. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

07-09-2013, 08:44 PM	#6
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Anyone familiar with Edelbrock carb vacuum ports Look at your distributor, the canister coming out of it should have a vacuum hose connected to it, follow that hose and make sure it is connected to something on the intake. That would mean it has full manifold vacuum, most people use the ported vacuum on the carb. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!



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