adjustable rocker ?

Do you have the right push rods?

It is a little more trickey with hyd lifters.

Start by bumping the engine over untill the inatke valve opens and starts back shut, stop and adjust your exhaust valve on the same cylinder.

When the exhaust valve starts to open adjust your intake valve on the same cylinder.

Your going to have to pre load your lifter so while your at the point of adjusting the valve set your push rod at zero and then turn the adjuster a 1/4 of a turn to load the lifter lock it down and move to the next valve.