Vacuum

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Aug 3, 2003 | 11:21 PM

Gidde Up

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Vacuum

Ok. I have an Edl intake and Edl Perf 750cfm carb on my built 390ci. In the front I have two (one on the left and one on the right) vacuum ports. I'm supposed to hook one of them up to the vacuum advance on the dist BUT, I have the MSD billet dist w/o the vac. advance. Does this mean I can just block off both vacuum ports on the carb or should I be looking for vacuum elsewhere?

Any help is apreciated!

Aug 4, 2003 | 04:40 AM

Ratsmoker

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Joined: Feb 2001

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From: Missouri

Vacuum

You can block off any un-needed ports. I'm not sure where or what the ports are on the edel carb though. I would use the intake port for the power brakes anyway.

Aug 4, 2003 | 06:05 AM

Gidde Up

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Vacuum

Thanks. Good info.

As for the intake port, if I do that, then should I not use a PCV on valve cover? Currently, I have the passenger side PCV going to the carb and the power booster going to the driver side valve cover breather. Therefore, I would use just use a regular air breather on both valve covers?

Aug 4, 2003 | 06:21 AM

luvfordtrucks

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Joined: Jun 2003

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Vacuum

i believe you want the pcv valve to go to a valve cover and the hose to the carb. in the other valve cover would be a breather of some kind, and the power brake booster should go to a fitting on the intake manifold for manifold vacuum.

Aug 4, 2003 | 08:31 AM

fordfan428

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From: MT

Vacuum

Shouldn't the pvc go to the air cleaner?..Should be a hole in the base with a fitting, at least there is on mine..Then hook the brake booster to the carb..JMO..

Aug 4, 2003 | 09:57 AM

Putt

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Joined: Jul 2003

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From: Colville, Washington

Vacuum

Both the booster vac line and the pcv valve hose need to hook up to manifold vacuum(vacuum at idle), otherwise you won't get any pcv action or power assist. There should be enough vacuum hookups to accomplish this. A breather is needed in one valve cover and the pcv in the other, make sure there is a baffle under the pcv valve or you'll suck oil fumes into the carb. and it'll smoke a little. luvfordtrucks has it on the money!!

Aug 4, 2003 | 06:10 PM

Gidde Up

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Vacuum

Thanks all for the info. One problem, the only manifold vacuum I have comes from the valve covers. The way I had it rigged before was PCV in the breather on the passenger side to the carb. Then, driver side breather to the break booster. I didn't notice any issues then, but that doesn't mean I had it right either.

Fordfan428, when I took the motor out of a 68 Galaxie, the PCV was in the breather on the passenger side valve cover. Going to car shows, I've seen other FE's with this same setup so I think there may be a few ways Ford had this set up. Sounds like we know of two ways so far.