started this morn acted realy screwy missing popping through carb screwed with timing finally herd tinking noise shut her off pulled drivers valve cover off 7 of 8 rockers lying on the head all polly locks had came loosemade sure they were tight before starting what happened

Not tight enough, apparently.

How did you tighten them down? Set the lash and then turn the set-screw?

just stating the obious here, but the rocker nuts backed off....thats what happened. as to why it happened, it could be a number of things

yes tightened lash then set the set screw new to poly locks

It's virtually impossible to get the set screw tight enough when you turn it alone. Turn the set screw at the same time as you put the last 1/8 or 1/4 turn or so on the nut when you set the lash.

Did you check the rocker geo,any coil bind,etc.Now is anything bent??.

Put a wrench over the rocker bolt then use a allen key, and you will hear to clicks. The poly locks are then locked. Dont be scared use some force. there a bitch to get to click.

sometimes fresh set-screws have a little machening flashing left on the end. use a file to get rid of the sharp edges. check your studs too.

yes checked clerances and coil bind and guide to retainer clearances

studs are not flat should i file them also rolled push rods on flat surface checked out ok got lucky on that except one intake pushrod onpass side it kindy broke replacements on way