Thanks for posting the additional photos Dan. It looks like maybe the car has had some changes made to it. I can see the 1980 taillights at the rear, but the front grill looks like its from a 1978. After looking at the photos of the underside of the car, I doubt that its a former police vehicle. I can't see any of the extra frame reinforcements that would have been on a police vehicle. I'm looking at the air cleaner assembly, and it looks like it might be a 267 V8. Does it have a 2 barrel or 4 barrel carburetor? If its a 2 barrel, its likely a 267, and if its a 4 barrel, likely a 305. Is there any way to research the history of the car? might help with your efforts to get it fixed up.