Oil Leak Coming From Transmission Tunnel

I have a 440 big block that has a steady stream of oil dripping when the engine is running. I just replaced the rear main seal (from 440source) and there is still oil dripping from the back of the oil pan/bottom of the trans tunnel. I made sure to place the seal in the right direction as well.

I have a 6-quart oil pan (from 440source) and have about 6-7 quarts of oil in the engine, is that too much? Could that cause a leak? Is there any other place on the back of the engine that could cause such a leak?

Thanks