I just finished rebuilding my 90 sc with numerous mods now I have it all put back together and in the car and now it will not start. I made sure the fuel system was primed and the cam shaft sensor is as close to its original position as I can figure. but all it does is turn over a bunch. Does anyone have any ideas?? It has taken me close to 3 months to complete this task all I want now is for this aggrivating expensive beast to fire up.