[SledMan]

I was reading a post by Tony that said to grind out the openings in the fuel filter base, and take off the hand pump, just wondering if anybody had any luck with that and will it work with just the stock draw pump, meaning no pusher electric pump? Also will I lose my prime if I take the hand pump off? Any body know if the late 80s kw had a electric fuel pressure gauge factory or mechanical, I seen one in the truck paper an 89 and thought about going that route for a gauge, seeing how I cant keep the isspro mechanical working right very long with a snubber

Losing the primer will gain some flow, but no more pressure. Get the block off cover from Cat and drill it out to 1/2". If you increase pressure too much, the side cover (fuel manifold) on the pump will blow the gasket. 35-40 psi is all it needs anyway.

 

[SledMan]

That would work in a perfect world, but sometimes the electric pump just wont pull the fuel until you unscrew the hand pump and jack it a few times.

:whs

The Fass will not prime the system during filter change, even if the new filters are full. I always have to reinstall my primer to get the fuel system primed again.