My 360 Engine is running reverse once turn off.

Running backwards? is that even possible?
It would have to be pulling air in from the exhaust system, and blowing it out the carb. It's gotta be 12 ft or so from the tailpipe to the manifolds..... and it's all full of inert gasses at shut-down. So
my answer is; Are you sure it's "running" in reverse?

Dieseling is just run-on in the normal direction.
and like George said almost always caused by the throttle being too far open, which is usually because the timing is retarded.
Fix the timing, close the throttle, and the problem goes away.