hello all, i have a 90 civic si with the d16a6. I purchased an exospeed reground stage 2 cam and an aem adj cam gear. I replaced them a year ago and haven't started the car yet. (wainting to paint the car). Now that I'm trying to get the car running, the car won't start. I remember having a hard time when I replaced them becasue the old stock cam gear has the notch for tdc. But the new gear didn't have it. Anyone out there know how to get the car timed right. I checked my firing order, and reversed the distributor thinking it could be 180 out. But still nothing. I do have spark and have replaced the plugs and put new gas in it (parked it with fumes). I also tried using starting fluid. Not even a sputter. My only thoughts are that when I installed the belt the head wasn't in tdc (the bottom end was at tdc #1 cyl). How do you know when the head/cam is in tdc? Please Help!!! and thanks!!!