Ok so have a 69 runner. Put 2 1/2 inch recurve spring's on the back to give the car that rake I wanted. Now have fuel leaking out of on of the vent lines. the short tube in tank. Put a vent check valve on it thinking air could get in and fuel not out. Then after filling the tank and driving noticed have fuel coming out of my frame rail in front of the tire. That is because the long line that goes into the trunk goes to the frame rail. Now my thought is that pressure is building up in the tank forcing the fuel up through that line. Had any one put a vent line on the filler neck to solve this problem. Been a long time but kind of remember doing that with my charger after jacking up the rear end. Any Ideas would be appreciated. Tired of loosing fuel and it leaking from the vent lines. Blue.