02-18-2023, 04:05 PM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,433
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Not Ranked
Quote:
Originally Posted by cobragene
I have a 428 with an edel RPM manifold and have my brake booster connected in the port on #5 cylinder, that spark plug is always and little whiter than the rest of plugs, might I benefit from drilling and tapping the 1” carb spacer on the primary side for the booster?
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Yes, you will. A single runner only has vacuum when the intake valve is open, during the intake stroke. But the plenum has vacuum all the time. You will get a stronger and more consistent vacuum there.
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.boB "Iron Man"
NASA Rocky Mountain TTU #42
www.RacingtheExocet.com
BDR #1642 - Supercharged Coyote, 6 speed Auto
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