Just filled the tank, but it is something that I would do!!
Fuel pump sounds fine... high volume jobby under the boot. Regulator (looks a bit hoopdy) at the throttle bodies. Fuel pressure is around 38psi at idle, stays close to that when I rev, but haven't checked it while pushing.
"Alot" meaning a tornado of bubbles swarming the filter inside the housing. Looks like alot!
Setup is a Zetec 2.0. Not certain of the build... cams are obvious, but unsure of actual displacement, compression, flywheel, etc. (the guys at wirewheel.com are doing what they can to track down whatever info they have on the builder/ prev owners). Has Lumenition individual throttle body FI system. ECU is a british make... not certain the name. Has MAP sensor. I will look for the second filter.
The car is AWESOME(!!!!!!) other than this annoying problem. Plenty of power, well balanced, too loud, too much fun, etc.