Top End Miss

ok so i fixed my electrical issue and am now playing with the miss again!

so i went out for a drive and the miss is still there... 5800 and up...

but i did let off a bit and it didn't go away... really it didn't stop until i was at least 1/4 pedal out of it...

an old timer said to swap my valve lash, and run the exh tighter, so currently im at .016 int/.020 exh... worth a try?