Not really a apples to apples comparison, your head is a fully ported Speedmaster bare head, how about taking a bare Trickflow head and giving it the same level of porting.
Actually both are CNC ported heads.. the Trickflow is a CNC ported head.
There are several guys running 9’s with these heads in pump gas street cars. I haven’t heard of anybody running remotely close to that with trickflows.
Heck, even my very conservative street strip car with a small flat tappet cam shows 602 horsepower on Wallace based on time slip.