View Full Version : plug gapping

07-14-2010, 10:57 AM
think i will go back to agsf34fm just need a definitive gap distance for that plug on our cars thanks

done deal motorcraft sp 504 at .054 stock gap and all is well... installing / uninstalling 4 times i am now a pro at plugs 45 minutes thats with a smoke break! dont want to do it again for a while....