mcacanindin

Hey you guys I'm a new member on this site and was wondering if I could get some help from people here. okay let me get to the point, i bought this 1975 280z like 6 months ago. I was told it hasn't started for two years. After working on it, I finally got the engine to start. Now the problem is that there's no oil going to the top of the head, I don't know if is it clogged or if there is something wrong with my oil pump. If you know whats wrong with it or you know what I can do to fix it, please let me know. Thanks.