Hi everyone I'm new to this site. I have a 95 350 that I tore down and inspected and resealed it appeared to be a good engine. .... So I timed it can at 6 crank at 12. Now can at 12 crank at 12 I have to spin my crank 180 degrees almost to have number 1 tdc. What am I missing please any help will be greatly appreciated.