Are the lifters hydraulic or solid? Sounds more like a solid follower cam to me...
I dont ever run them down 1/4 or 1/2 turn after they stop wriggling....
Set them all to a gap 12 thou and start the engine....they may be noisy but at least you wont have over tightened them....
If the engine starts with the 12 thou gap and is quiet, you have a solid lifter cam...
If it doesnt quieten down once it is warmed up, the lifters have pumped up and will take some time to bleed down.....
Take one rocker cover off, once engine is warm...start the engine and run down a few rockers one at a time on that side...if they quieten down, shut down the engine and replace the rocker cover. Repeat on other side...
Note: Put some cardboard over the headers to stop oil smoke etc...remove once done...
Let us know how you go...
