Reply to thread

Message: <blockquote data-quote="Jrgunn5150" data-source="post: 498565" data-attributes="member: 9682">I did not ask whether I could or not. I did not ask your opinion on whether I should or not.Now that that's out of the way, I'll tell you how to do it, and why you should.1. A stock pump does not have enough volume, but a 255 Walbro does.2. Low/Pressure high volume. The key to running an EFI pump with a carb is using a BYPASS style regulator. A two port "dead head" style typically used will not work, and will over work the pump and kill, as well as not regulate it accurately enough. I believe when I tried that way I was still getting 17 psi with the regulator cranked all the way down. The regulator used is key, if it's bypassed with a regulator like the one I posted, it will accurately be at 9 psi, and the pump won't care because it's a continuous duty pump anyway.The return line does not care about volume, but I would run new lines anyway.As for the why, it's not that I'm lazy, or cheap. Since a 155 dollar regulator to start is not cheaper than yanking the electric pump and installing a mechanical, or easier. An electric fuel pump gives a constant flow of fuel. No pulsing, no varying rates. Mechanical fuel pumps are just like alternators, they do not deliver the flow at idle that they do at WOT. My own personal reason's for doing it, since the above I don't care about too much, are that putting in a carb'd 351 is merely an interim step, if I go that route. It's a big outlay to go from V6 to injected 351 up front, with this intermediate step, i can be on the road this summer, instead of next year.</blockquote>