Not Ranked
When I looked at the specs on the Holley Red pump, I became nervous. The Holley site has curves of flow vs pressure. Those 650 HP engines can be fuel hogs especally if you get on it. Instead of putting on a regulator and running a return line, I decided to go the cheap route and add a mech pump. My system has the Holley Red feeding a Carter mechanical. The Carter specs appear to be up to the task of the engine, but since the Holley was already installed I didn't see a reason not to use it.
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