The restriction in my filter assembly is a very small hole in the inner tube about an inch from the top. The return is at the bottom of the tube. The hole I would guess is smaller than 1/16".

Last edited by truckernix; 02/07/2010 1:54 AM.
1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!