Just for the record. The seal on the presure relief valve is easy to do without removing the oil pump. This helped with one leak. The new spin on oil filter seems to need torquing considerably more than the old type. ( two ring to compress) That stopped another. I'm also leaking through the pressure cap. Oil running along lip of cam cover to the back of v was the most surprising source. Just left with one small one to track down at the front of the block. Mike