Highest flowing sbm heads?

That's a pretty respectable torque number, I'd appreciate more details on the build if You get them, and what the curve looks like. If it will actually run safely on pump premium, it may very well make more hp on it, like to see that run.
Track HP is King for sure, given conditions are consistant, & as long as the test platform is the same. The MPH don't lie...

he put a little more info on his Facebook page