I know this is an old post. But I just installed a 360 in my 64 cuda. I have Doug’s headers as well but having an issue with the torsion bar hitting the header after trying to install the bar into the hex receiver in the LCA. You torsion bar seems to high/ further away from the collector. I have Schumacher mounts. Did you use the same? My pads appear to be an inch to an inch and a half tall. TIA