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

flathead31coupe said

So you would recommend the Mallory 250 for my application?

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Yes. You can use a 140 too if you can find one. But I would rather use the 250. IMO, you can’t have too much fuel pump, too much ignition and pushrods that are too big.

Either the 250 or the 140 will work.