When I did all my engine R&R's,I had the engine as level as possible with the motor mounts.Leave about a quarter inch of space b/n the mounts so you can move the motor around a bit.Then hand thread in both mount bolts from the bottom.Then once you have them started and not cross threaded,run them in a bit more, then set the motor down and snug em up.If it was easy everybody would do it,but thats how I get it done.I'm enjoying some Tacos and Cerveza right now mmmm