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post #9 of (permalink) Old 02-26-2002, 06:58 PM
dorfs
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Re: Another EGR valve question...(More info)

They make positive and negative backpressure tranduced egr valves. Normally, an egr valve won't pull with vacuum unless you stuff the tailpipe with a rag to build backpressure. Your are on the right path. High CO at cruise is normally too a large a main jet in a Weber. A basic rule of thumb is one main jet size equals 3 air correction jets. Lowering your float lever will also effect how fast the main metering circuit comes in.

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