[Kube]

Originally Posted by Tinker

Check valves in the pump should prevent that. or you have a leak close to the pump.


Robert Shewman
P.O. box 163, Kimberton PA 19442


More info here on the check valve flexhose...

https://www.fordbarn.com/forum/showt...se+check+valve

As Tinker has quite accurately stated, if your fuel pump is rebuilt correctly there is no need for flex line with a check valve.
That's simply a "band aid" approach to patching vs. a correct repair.
Do yourself a favor and send your pump to Charlie. He'll rebuild it PROPERLY and return it quickly to you.