I just corrected a motor out of location. I have set a few up of these with engine mounts. You'll note the angle of the carb pads is to make them close to level when the motor is positioned in the chassis. I think you'll find it's 3 degrees on originals and also should match your pinion angle. Check your pinion angle I think you'll find it's close to 4.5 deg on the CCX. I set them up with the pan through to air cleaner installed and get the air cleaner as close to the underside of the hood scoop as I can and the
oil pan between and protected by the frame rails. I line up the headers with the side pipe holes also. There are a couple of other dimensions to check as well.