Highest flowing sbm heads?

Anybody who has used a flowbench, especially a home-built one, has experienced the manometer "dance", it's amazing how bad some heads are as they transition from predominantly peripheral flow to crossflow through the valve/seat area. And as a home-bench guy, You're like, wtf do I write down at this lift...avg. the spread???
Back to the Ironmike thread, where He took His heads to "Tom", pgh area racers know who Tom is. He stated the heads sounded good on the bench, even tho' the numbers seemed a tick off, the curve was smooth and consistant. As it turned out, iirc, they were not the problem. The bench is only a tool, but a very useful one, if one uses a torque wrench for a hammer...don't expect the best results.