Collapsed, pinched lines or are they hooked up correctly at the tank i.e. feed and return. I had mine backwards and it took me about an hour to find that mistake.
89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.
AF Jeep Club Tail Number 184