I have bought a pair of used Brodix BB-1 heads with a set of Jesel rockers and need advise. The rockers have CAAS70 stamped on them. I think they are the pro series. The intake bar is stamped with a 19. The exhaust rockers are on individual pedestals and stamped 20. The intake bar is shimmed up .400 and the exhaust .100 with hardened washers. I`ve read on the Jesel site that the rockers don`t have very much travel adjustment on them so shimming must be the path to proper geometry?? I was going to rob the rockers and sell the heads but evidently with the machine work, these rockers are married to the heads. Might it be possible to run the same pushrods that the engine was running with Dart Pro 1 heads and Comp steel rollers with a stud girdle? What advantage might i see with the shaft rockers? Are they worth the effort or do i need to pass em on? I`m running a 475 bbc with a .731/.731 Bullet roller and 265 lbs. seat pressure. This is a lake boat and i know that the cam is too big but all i have at the present time. Thanks in advance for any advise and suggestions. This is a first for me as i don`t even know the right questions to ask.