I'm building a Gen 1 sbc, I've put a two piece Jesel Belt drive on it. I have 5* cam advance in it. My question is when doing the static timing before initial fire up, when lining up the marks on the cam wheel and the crank wheel, do I use their "0" mark or the straight line that I have 5 degrees advanced? I may be making this process more complicated than it is, but when I have #1 int and exh valves loose, and at top dead center, the Jesel name brand on the cam wheel is upside down! Someone please explain this process to me, this isn't my first engine build, but is my first with a Jesel Belt. Thanks.