Hey guys I recently rebuilt my xr6t engine amd everything was great except I forgot timing but worked that out and all good but now I have started it it had a ticking noise like a sticky lifter and was running on 5 cylinders while the head was off I had it checked and all good but removed the rocker cover and inspected them anyway they are all good moving correctly and in time the noise was really loud when I took the throttle body pipe off and ran it but since taking the rocker off and back on again it now wont start no spark please help