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11-04-2014, 03:37 PM
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Registered User
Join Date: Nov 2012
Location: Salt Lake City, UT
Posts: 520
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fuel delivery
My motor is a 2001 5.3 with the return line on the fuel rail at the manifold. Quick question, is it possible to have too large of a return line? Both my main line and return line are stainless braided 3/8" (-6an) line. My pressure at the rail is 47 psi at idle, is that normal? It has a new walbro 255 pump, new lines, new trick flow filter, new regulator.. the truck runs ok, but I haven't taken it out much.
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