Looking for some help to see if any of you can bolster or negate my theory. Ok so when i first bought my 91 ETC , I had oil leaks. Small slow leaks through the valve covers and a bigger faster leak through an oil line. Fixed the oil line immediately but decided the valve cover leak could be put on back burner until i get ambitious enough to fix since it wasnt that bad. However this tough winter with its extreme temperature drops and the car sitting in the garage (unheated) and me starting the car once a week to operating temperature, May have taxed the gaskets and the oil leaks from the valve covers has accelerated and its a must do job now. So yesterday i pull the car out of the garage and i am running it and i notice lots of oil smoke from under the hood, and just as i noticed that, the car stalls. Start her back up and sputtering, misfiring and seemingly running on 6 cylinders. Pull her back into garage and shut down.....Come back a few hours later, start her up and runs fine, Couple minutes as oil starts to flow..smokes up...engine sputters. So here is my theory. Is the oil making its way into induction possibly through the triangular seals that seal the intake along with the valve cover? Just want to see if thats likely the cause of the sputtering... No codes but i am almost certain its oil escaping into induction. Possibility?