Roller rocker problems

try to set the pre load in the lifter at .030 and tack weld it there make sure all your lifters spin freelyand then drop in your pushrod legth tool and then set your rocker shafts in and get the roller setting center ,left and right and then about a little over 1/2 way twards back of valve , so it isn't going to fall off at high revs , ,make sure your pushrod measurer is sitting proper in the lifter and proper in the cup . Turn to just snug and that should tell you your pushrod length with built in lash .
hope this helps ,remember to just use the outside spring during breaking ,to much pressure can wipe it out instantly , reinstall inner springs after a good braking and GL with your engine