You and I are on nearly identical build paths with our cars. I also started with a '74 Duster, same color combo as yours except mine was a 318 with the factory fold down rear seat and snake skin 1/2 top, all of which have been eliminated (mini tub). Fantastic fab work on that rear seat by the way. I have a stout 360/iron cased OD/narrowed 8 3/4 for motivation but went crazy with a triangulated 4 link rear suspension. Also saved myself a lot of fab/aggravation by changing out my dash with a rally frame out of a 69 Dart and building up a custom bezel set up with Autometer gauges. Your post on installing the earlier rear bumper has me looking at the banged up '70 I picked up years ago to do this exact mod but I ended up just pulling the stock bumpers in on both ends because they were in such good shape. Just hate how they stick out past the body lines without the filler panels from the crash bumpers. This was a long winded way of asking if you could post some front/rear pics of your car with the new tires and rims? Love the car and your work, keep the updates coming!