Help please

[420nitro]

I assume these are pedistal mount rockers?
If they are they go as follows:
Upon compression stroke at top dead center is when you bolt down you rockers to 18-20 ft. pounds for that cylinder.
Know you ask, when is the next cylinder on compression stroke.
The trick is on your harmonic balancer. You will notice that theres a bolt lined up with your pointer. (timing tab) When the next bolt lines up with the tab again your next cylinder is ready for the next set of roller rockers. Your next cylinder goes by your firing order starting with number 1 cylinder. If you find that after proper tightning that your push rod is tight or valves are opening then you will need shims. (generally you want to be able to twist or spin the push rod with your fingers and not have any up & down movement...also known as 0 lash after tightening your bolt). After completion you should check your work by proforming a compression check. You know you did something wrong when theres no compression in one of the cylinders.(one of the valves are open or both for that cylinder.) If you have compression in all the cylinders then congrats...your done.
Good Luck