[joedoh]

you are running a carb. you need 4-5 degrees down angle on the engine/trans because of the float in your carb is set by the preset angle on your intake, which is 4-5 degrees down.

also your trans pan will be level with a 4-5 degree down angle.

set the rear end angle like 99 says above. I just use angle shims because joedoh's law (also called the dumbass constant) says if I touch one thing, no matter how simple, it will cause two other things to break or otherwise need work.