filler neck modification

Time for me to report on the restriction I installed. I put one in the 66 Valiant wagon and one in the 66 Barracuda. It helps with filling and the nozzle shuts off quicker. I WONT say it is a complete fix. I think a washer welded in the filler tube would be as good or better. It would just take time to remove the filler tube and do the welding. I don't have any problem with gas spilling when driving and I have original gas caps.