Help find oil leak

[Mitzki5]

I just built the motor and put it in. After break in and everything I took it for a drive. When I got back there was oil all over the passenger side of motor below the heads. I cleaned everything and started motor back up to see where leak was. Couldn't find a leak, so I took it for a short drive and sure enough, oil all over side of motor again. So I decided to replace the oil pan gaskets because I thought it was leaking at the joint between timing cover and oil pan. After I did all that I started it up and no leak while parked. Took for drive and sure enough oil all over side of motor again. Where in the hell is it coming from. It only leaks while I am driving it and it leaks bad. It's hard to tell anything because it is so bad. I think the fan is blowing the oil all over the place. Please help. Thanks.