[Blue Bowtie]

A clean fuel filter should pass air very easily. If you drained the filter and and tried to blow through it, and it required about as much pressure as inflating a balloon, if it probably restricted - Either that, or you need to cut down from smoking nine packs of Chesterfields every day while working in the mercury mines.

Get a new filter (since you'll need one anyway) and try blowing through it before you install it. You should notice a substantial difference.