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WOT fuel pressure



~53-59 key on, engine off. Engine running should drop about 3-10 from previous value. And, since I had to go back and look, it actually says that the numbers with the engine running are with a vacuum source connected.

FWIW, I looked back through the years with L67s and it changed in 2001 to what I stated above. Prior it said that key on engine off should be 48-58 and engine running should be anywhere from 31-52 depending on the year (changed almost yearly). Once it hit 2001 they're all the same up to 05 which stopped the Series II.
 
just to bring this back at let you know youre not crazy here are my pressures (just got done installing the gauge today):

key on: 60 PSI
idling: ~45-50 PSI
WOT: ~72 PSI

i run a little more boost than you, so mine might be more on the top end.
 
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