well i took my engine rite down to the bottom half. i put it all back together and made sure the marks wer all matched up perfect. i tryd both ways on the cam thinking maybe the cam was off. but it can only go in 1 way with the marks matched up. i checked the wires and it all looks good. guys i need some ideas. please guys help me out im so sick of the problem of it wanting to get spark 1 day and no spark the next.