64 Dart

I think those 67-72 mounts are completely messing up the geometry of how the engine sits. The drivers side looks way too short compared to a factory 63-66 motor mount. The passenger side looks a little better. Here’s a reference:
'65 Valiant V8 motor mounts and brackets PICTURES needed!

If you intend to put a motor plate on it, I think I would bolt up the transmission in the factory position, remove the scatter shield for now, get the headers mounted, steering shaft and anything else that might have interference around the headers and then try positioning the motor where you want it, maybe using those mounts but remove the insulators for now and just add shims to each side until you are level and located properly in the left-to-right orientation, which is typically offset a little toward the passenger side if I recall.