Ive heard of this check valve, and it was always referring to an intank deal. Im thinking of something attached to the line from the fuel pump. All I know of that was factory inline with the pump was what I thought was a silencer. It may also be a check valve to keep gas in the lines and not flowing back into the tank
, not sure. I do know that whenever we upgrade our pumps this thing gets discarded anyway, so go figure. I do know that I have not seen to many TRs that just start up immediately. Almost everyone Ive been around takes a couple turns then fires up. Its pretty much the norm. Way back when I asked about this, I was told about the check valve deal with the fuel pump. Maybe someone else can verify.
As far as the hood mounted FP gauge, youve got a couple of options. First off you need a fuel rail "T", if you dont already have one. Now, Poston sells a kit with a flexible braided line and gauge that you can hook to the "T" and extend to the windshield. I have used this before and both of my brothers still use it. Just stick it under the winshield wiper and it will stay in place and in view. Good thing about it is that you can stick it back under the hood whenever you want to stay out of sight or for adjustments.
Kenne Bell has a bracket that screws into the underside of the hood (no damage to the hood itself) and extends out and loops up to mount a gauge above, at the edge of the hood.
I basically duplicated the Kenne Bell bracket by cutting some aluminum sheet metal. I then bought a Autometer SportComp gauge and some braided line from the local speed shop and instaled it to the bracket.