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Old 07-16-2003, 08:53 AM
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Making extra Vacuum Port

I'm running a Speed Demon 750 Carb on an AFR hi rise dual plane intake, I'm also running a 1" aluminum spacer between the carb & intake. I don't have any vacuum ports setup on my intake & and I only have 1 main vacuum port on the carb baseplate. I need 2 good sources of vacuum 1 for my brake booster ( if my engine even makes enough vacuum for my power brakes ) and I need 1 big vacuum port for my PCV setup.

What I'm planning on doing is using the vacuum port on the carb base plate for the power brakes & I was going to drill & tap a hole in my carb spacer & screw in a nipple off of a Harley Davidson Oil pump to make my PCV Vacuum source. Does anyone see any problem with me stealing my PCV vacuum off of my carb spacer?

And no one needs to try to talk me into not running a PCV, I'm the one that has to clean all of the oil mist from under the hood.

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Old 07-16-2003, 10:13 AM
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That should work fine.
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Old 07-16-2003, 08:37 PM
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The vacuum should be taken off of the top of the intake at the highest point because of flow. I put in 2 end run T's across my cross ram and ran it to my brakes, Tran's. and heater.
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