Fuel pressure dropping while driving and under acceleration to zero at idle runs 4 lb electric Blue

flathead31coupe said

Sorry for the bad picture. The picture I posted shows the supply line coming out of the sending unit going up following the wheel well back down the frame and into the pump. That is how the setup is now. I was wondering if I shorten the distance and go straight from the pump over to the sending unit with a short piece of hose if it would make the same difference as moving the pump closer to the sending unit with a short line

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These other fellas are telling you ideas that take some work but should absolutely work/solve the concern.

For me personally, before I got to the point of doing all that, I'd try your idea and then a simple relocate to behind the axle if that didn't help. That pump can lift fuel a bit - the question is how much under hot temps and when your demand is at its max. I'd make the easy changes and test it. But that's just my opinion.