i was over at a friends house last night and we were talking heads like we usually do (he bought one of my flowbenches) and he grabbed a Mopar performance 576 cast iron head off a shelf. I didn’t get a real good look at them as they were nicely wrapped in cellophane and I didn’t want him to rip them open. He paid some pretty good money for these years ago and never used them. Just curious if any of you guys ever ran a set and what it ran at what weight. He flow tested them and I only now max flow but won’t let that out of the bag yet.