502 ramjet fuel pressure

[undertaker]

well my 502 is being moody again and I'm just trying to trouble shoot everything....whats proper fuel pressure supposed to be again? I have 48 with the vacuum line disconnected and bout 42 with it connected at idle.

still have a high idle, no intake leaks, throttle is closing, new cap/rotor/plugs/wires etc. and I also have a very bouncy tach......which I can't figure out a reason for.

Gonna check power and grounds and clean those up but I'm running out of ideas now

truck was trapping 89 mph 2 months ago when I had it at teh track vs. its usual 95 through the traps, didn't even want to go near the bottle.

Of course its time to sell the truck and I at least want it running right to sell itself on its own merits.