Hey Teddi, i pulled my motor 4 times and replaced the thilnksndifgn;laksdf thing every time due to it leeking. All and all It was because of the Summit racing 7 quart oil pan. The gauge of metal was to thin and when i would torque it down with the one piece gasket it would always leak. I tried both putting sealer in the corners and not putting it in the corners. Either way it didn't leak any differently.
Solution: Bought a 350 dollar Canton Racing 8 quart pan. Put the one piece in and put a scoche of sealer on the corners(a film with the finger). Torqued it down and doesn't drip a drop or even have a juicy fart of oil!
It is most likely your pan, check the metal thickness and if the holes cave in just a little, the slightest amount will create problems.
Good mistake to be learned by my stupidity and youngfullness. I did get real good at pulling th e motor, could get it out in 3 hours, drop tranny, wiring and pulling included. Haha
-Rennskii(have to pull it again to put her in the SS)