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Intake System Picture Without Vortec Cover

By neto1978
April 20, 2009 in 1999-2013 Silverado 1500 & Sierra 1500

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neto1978

Posted April 20, 2009

Posted April 20, 2009

can anybody post me a picture of a NBS 5.3 liter intake manifold system(under the vortec cover )?

I need to see if any factory orifice exists on it to make a modification to inject gasoline on cold starts...the kit that I plan to install asks me to use a egr valve orifice ,pressure regulator orifice ,auxiliary vacuum inlet or something like that...

tks a lot

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