For people thinking those rockers might be remotely budget friendly are going to have to keep dreaming, they will be expensive to buy, head will need machine work and non stock style lifters will be needed but for high end stuff they look really nice.
As far as I know, in factory stock, machining and moving things around is not allowed. However, the factory stock motors do use a different lifter layout so everything might be part of a approved by nhra package. Im sure that is a boat load of money in that picture though.
