Hi all, took my inlet manifold off today to fit itb's and noticed that the intake ports and the runners on the manifold are coated in an oily substance that has a fuely smell to it. just wanting to know if this is normal or if there is somethng wrong with my car. i had the engine rebuilt a year ago or so with new seals and everything (valve seals, piston rings etc.). ive got an oil catch can fitted to my car thats connected to the rocker cover breather and the crank case breather. ive also gutted the pcv valve and my catch can barely gets anything in it apart from a little bit of water over time. Any help is appreciated. Cheers.