I can't tell you how many sets of Edelbrock heads I've had on my flowbench and here are the numbers. Now subtrack what you lose with your intake, lash, pushrod angle, and pushrod deflection.
Thanks for the info. I’ve never been impressed with the RPM. Flow benches vary and some are happier than others. For the money there are better heads out there. But it’s your money spend how you’d like.