sbc 350 pretty decent motor weind intake holley carb new headers and exhaust. bought it with all parts already installed. it has been ticking not knocking it has 0 oil pressure when warm and pressure increases with rpm im leaning more towards lifters or rod bearings possibly bad camshaft can you give me an idea it sounds like valve chatter but i set the valves and put the proper preload on them already i can send a video if necessary