318/390 stroker kit oil leaks NEED HELP!

Thank you to everyone that has replied! This is driving me nuts and was supposed to surprise my dad with this car this weekend. Now I’m not sure.

update: started the car, let it get warm reved it up. The catch can system has really good suction at idle, I took off the breather and put my hand over it at idle and Erving it up to about 3500. Didn’t really feel a difference. It was had to tell if anything was blowing or sucking since the fan is right there.
In addition, there are no leaks. Zero. Which after yeaterday seems odd since there was a lot of oil. Seems like if there was a hole at this point it would constantly leak.
Rear main area also had a handful of drops coming from it from the drive yesterday. Today at start up nothing driped from there either, looked clean.