Try looking for Ray Nichels Engineering and photos. I think most of the Chrysler stuff came from there in one form or another anyway. I would think if you can find some of the photos of underhood shots of Chargers from 68 thru 73 you would be in the ball park. I am sure it irritates the MOPAR guys but a Dodge is a Dodge is a Dodge. Other than the sheet metal, they all looked alike to me. Even though I cant tell you where to look, those pics are out there, you just have to search a little. Try pulling up some of Petty's stuff, its not that different and even some of his was Nichels stuff.