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Discussion Starter #1
When you run a Holley with power brakes AND a pvc valve, should you use a "tee"? There's only one vacuum fiting. I need all the vacuum that I can get.... does putting the pvc valve in the "tee" reduce the vacuum?
Phil
 

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if it's just going to the pcv valve i don't think you will hurt anything vac is pretty much the same if im not wrong. do you have a ported vac on the carb if so use it for the pcv valve and your intake manifold vac for your brakes. ????

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members.aol.com/jnkb2cool/chevelle5.jpg John Krenn
1970 malibu SS look-a-like well kinda
307/200-4r

Ft.Worth, Tx
 

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Phil,
Put a fitting in your intake manifold, and run your brake booster off of that.
that's how I have mine.


Jeff
 

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Brake boosters are what the manifold port is for. I was told that a T setup can allow crankcase vapors (oil) into the brake booster, not good. GM even used a check valve on some lines to the boosters supposedly for this reason.
 

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Discussion Starter #5
I forgot!
That's what started this whole thing!
I just installed a Victor Jr., I previously had a RPM Performer.
So I just have one port.
Should I use the small port off the Holley??
Phil
 

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I'd run the vacuum to the brakes and just vent the crankcase. To me stopping is number one in importance. With a radical cam the power brakes don't always work that well anyway. tom
 

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A buddy of mine drilled and tapped his victor Jr for a manifold fitting for the same reasons you have. Worked and looked fine and it only took him 15 minutes.
Of course the manifold was off the car at the time.

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Clark
TC #68
Ft. Polk, Louisiana
 
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