The 350 crate engine in the '56 I bought doesn't sit level. It sits high in the front so that the 17" fan I'm using is very close to touching the bottom of the radiator with a sizable gap at the top. The engine has side mounts plus a front mount on the passenger side. There is room for the side mount bolts to move lower in their slots. Should I loosen the side mounting bolts and tighten down the cushions on the front mount in order to lower the engine in front? It looks like the front cushions were not compressed, when the engine was installed.