Indy does it again?
I bought those same heads years ago. Same deal on the rockers, adjusters were junk replaced with Smith Bros. They tried to get me to buy their shitty pushrod kit, but I wasn't having it. Asked if I could buy the heads bare. Nope. Wound up replacing everything that came with the heads. Picked up 30 cfm after redoing their " valve job " if you could call it that.