Also, make sure your sealing surfaces are clean and oil-free in order to help the rtv to bond to those surfaces. Most rtv sealants take 24 hours to fully cure so don't be in a hurry to fill the system with oil.
Mine sat for a week the first time around before filling with oil. I'm pretty sure that positive crankcase pressure is my biggest culpret. I'm going to try the pcv valve. I only had breathers on each valvecover and was not schooled in the operation of said valve before. I'm not sure yet what sealant I will use, but I will let it set up somewhat before the final torquing of pan bolts. Changing rear main as well even though I think it was probably ok. Thanks, and I welcome any more thoughts on this.
