So I'm at wits end. I have a rebuilt 306 with f303 eddy performer rpm heads and systemax upper. Car a has about 3k on motor. Ran great all last summer with no issues. Now the car is smoking bAdly. I replaced pcv valve and screen. I tryed plumbing in two pcv valves from the lower intake with an catch can. A quick ride around the block and there was a nice puddle in can. Car was still smoking tho. It smokes on start up under heavy acceleration, and even sitting at stop light. I pulled throttle body off and there was a puddle sitting right inside intake. It's leaking out between throttle body onto valve cover. I've even tryed to run no pcv with a air breather In place of pcv and breather on oil cap. The oil literally pumped out of lower intake breather all over. Not sure we're to go from here. One note is my driver side valve cover has no vent... Guess just looking for some input on we're to go from here. All motor work was done by well known shop and heads were rebuilt as well. Thanks for looking...