It doesn’t matter how well matched the cam is to the combo....... when you add a hyd lifter to the equation, ultimately you’re at the mercy of how well the lifter translates the cam motion into the pushrod.
Which usually leaves something to be desired...... especially as the RPM goes up, and the spring loads are increased to maintain control of the valves.
In a race car, that’s a definite “no thank you” from me.
As for the original question......
Low-11’s for me with a Racer Brown ssh-44 in a 440, in a 3575lb B body.
Stock rockers with adjustable pushrods.