[Jeff Lee]

Since BBC are not my realm, I consulted with somebody that really knows these things. Regarding a Super Stock BBC, he told me the aluminum BBC heads (401?) could outflow the capabilities of the 2.19 valves; i.e., the valve is the restriction, not the ports. So adding a Ti valve, while not being larger, would certainly add 500 or so RPM. And that is where the benefit is. The "cork" can now cycle many more times down the track. He thought the 396/375 would really like this option.
We also discussed my 2.02" intake 390. His opinion was the valve was probably light enough and the heads don't flow enough; in other words the flow numbers of the head are more closely correlated than in comparison to the BBC.
So that gives some insight as to who or what can benefit the most from such a change