I hate to do this to CPP but there is another headache and I know this complicates this topic, but it involves safety.
The CPP master cylinder is Asian made and there is a possible reliability issue:
https://www.stovebolt.com/ubbthreads/ubbthreads.php/topics/1459439


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."