Update......new custom grind hyd roller cam, morel short travel lifters, pac 1209x springs/locators/retainers/locks fixed the issue, have revved it to 6400 no issue and pulls clean and strong up top. Upon tear down I found that I had 3 bad lifters. These were morel reg travels and the cross pin retention in the foot of the lifter had failed and was causing the lifters to drag in their bores. They did a pin retention design change 5ish years back and turns out I had the fail prone design. The TA springs could use a better selection of some of teh newer design features and lighter retainer. Fwiw their fix using stronger springs out of their catalog would require my very expensive T&Ds to be machined to clear an even bigger OD spring.....uhh no!! I have sent all the spring and hardware info to Nick Micale per his request as Kenny D just bought a set of TA heads and had the same not wanting to rev issue and hopefully they can send the heads out better equipped from now on. Clearly my bad lifters aside they dont put strong enough springs out with the heads. Granted the pac 1209x springs are too much for regular travel morels since....iirc they dont want over 350 lbs open. But are fine for short travel and as far as noise....they sound a lil more sewing machine but im not the typical turbo regal whine about exh drone and valve train noise diva like most [emoji1]
Very frustrating and alot of money and time wasted but glad its fixed.