Hello there guys. To start yesterday i changed my stock intake manifold n carb for an edelbrock carb and intkake manifold. Took the valve covers off to install the maniold. After all installed ran the elco and was dripping a lot off oil. So i put in new valve cover gaskets to replace the thin ones they had and stopped the oil from dripping. Today i was on the highway and noticed smoke coming out from the back of the elco i checked and therse oil all on one of my exhaust pipe coming from the engine to the back anyone know whats going on?