BB 1.6 rockers for ede victor heads

Yes Bob the rocker shafts have to be harder for a roller bearing as the point loading is a lot higher than a bushing. probably will stick with harlan sharps unless i can find the money to go with t&d or jesel but i do see little advantage for them at what i am doing. i have run harlans with 750 rollers making about 775 hp and no problems but i do run light spring preasure than most. lighter weights like crane did not survive real well. well speed costs how fast will your wallet allow you to go.? thanks paul