383 engine noise

So I pulled the valve cover ( drivers side) and I pushed hard on each rocker arm with each lifter on zero lift on the cam and was not able to compress any lifter. So I would assume I do not have a collapsed lifter? So then pulled the rockers snd pushrods out and got my adjustable pushrod and set it up to zero lash on #1 TDC then I compared that to my stock 383 pushrods and now relized that my lifters are running preload of .085"-.090" could this be a problem? I hear .030-.060 is recommended. cam is a 68 RR cam and lifters are also MP. Thanks