*Update*
So I was changing the spark plugs (SUPER EASY BTW, I thought it was going to be hard or what not but I followed the steps Spohn mentioned and its EASY!) I NOTICED SO OIL LEAK from the Valve Cover...Long story short my valve cover gasket is shot and I have to wait till monday to buy 2 New Valve cover gaskets from nissan. I might aswell replace both since I'm already there working on the engine and I'm glad I saw this NOW rather than something worse happening down the road after installing my parts from my build. So I'm a little stuck atm but nothing that can't be fixed
...will keep posted...