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Message: [QUOTE="mandkole, post: 1104325, member: 4630"] With the Dahl, I see any air that gets entrained or trapped on the suction side. The only time I can be at risk of getting air is if I run the tank low and the big straw pulls some. Entrained air is the result of many things and to me, not a reason to not run a prefilter. As it was written, that system suggestion makes no sense to me-- perhaps it makes some sense on a race only application. For the street, you need a return to maintain flow through the system, manage fuel heat and pump life in low volume duty cycles. When I was playing with gauge sensor location awhile back, the line seems much more turbulent on the pre injector side vs the return side. Has anyone played with regulating the line pressure pre injector? Like Lincoln said, pressure drop would seem likely. [/QUOTE]

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