Fuel Problems.

["Matthew Walker" <mwalker@xxxx>]

I know this has been beaten to death. But is there another possible
cause to the fuel starvation symptoms normally caused by a collapsed
inlet fuel line? ( I know my problem is not a collapsed line since
there is currently in place the fun to spring fix. ) 

Another question possibly related -- comments or info on the envelope
style pre-filter -- is there an alternative?