Sorry for the long delay. From everybody I spoke with at 3 racing engine shops and 2 dyno shops here in Calif, Johnson was at the top or at least one of the top 2 lifter manufacturers mentioned by all. So I went to Johnson's website under venders, and was not so pleased, so I called Johnson and asked which vender had them in stock. And they arrived in a few days.
They came from Marine Kinetics, PO box 353, Canandaigua, NY, 14424
Part # JL2311BBR. $1,162.94 freight included. They look good..
Have not assembled the engine yet as I'm still waiting on the machine shop and parts.