Hello,the sticker on the hood is missing,and I need a vacuum routing for a
1978 Mercury Grand Marquis,,5.8 351M/400,nothing else mentioned on the valve cover,so I am figuring it is just standard emissions,Federal I guess?? I seem to find some schematics on line,but I am not sure what to use,non of the ones I find do not seem to be match,or I am not reading them correct,it does have air,has the vacuum operated headlight covers,not sure if they will show that vacuum routing.If any one could help me,I would so much APPRECIATE you help if I can get the figured out,it is possible it is,but I would love to make sure,any questions,PLEASE ask if you are able to help me,THANK YOU IN ADVANCE,Mark,
One more thing,looking on the front of the passenger side valve cover for the numbers to match it up,they seems to be faded,any where else to look for the numbers for the exact emission routing schematics??