Re: return line
Mike,
with several builds/upgrades, each one has smooth, steady pressure with the addition of a return line.
*The ultimate [when rules allow] belt drive pump with bypass regulator
*When rules require an electric pump I like a return style regulator that has a vacuum feature. Even with our radical cams just a few inches of vacuum at low speeds bring the pressure down about 2 - 3 pounds below the wide open [vacuun line removed] setting.
*At light throttle, the engine is less "blubbery" with lower fuel pressure
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Larry Woodfin 471W
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