It seems, from the initial comments that a fuel pressure fall off during
climb in PA28 aircraft is seen more often than I thought.
Well where do I go from here .....

You join the Cherokee Pilots Association, where if you had been a member
(and if you had read the organization's "bible", "Cherokee Tips and Hints")
you would have known that this fuel pressure thing is a common, benign trait
of all Cherokees.

My Warrior did it, and my Pathfinder, with the O-540 engine, does it, too.
It's weird, but (if you look closely at the fuel gauge) the "green" goes all
the way down to 0.5. "Normal" fuel pressure stretches across a very wide
range!
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"