I am gathering parts for a street strip 292
I have barker hi lift rockers and will have to buy  adjuster screws for them. 
I wonder if anyone has used a cup style adjuster screw instead of the ball end, so you can use standard tip pushrods?
If so what and where to buy this style?
I have also heard that FE ball style adjusters like Crane sells can be used ? Part # 99680-16
Thanks! Mike