While i am waiting for my s4 swap i got the 90 with the v6, recently i had to do the head gaskets. the car had spark before it blew the head gaskets and now i got no spark. Everything is plugged back in and i dont think my timing is off, so what else could it be. The alternator could have gotten water and oil on it, or my timing might be off. Would either of these cause a lack of spark?