The only real advantage I see with the TF 270 over a MW EZ head will be fit and finish, and possibly cost.
They aren't really breaking any new ground here.

I know the 270 has been eagerly awaited, but frankly I think the 240 made more of an impact on the std port market than the 270 will make on the MW market. But, time will tell.

On a RB 451, the difference in power between ported 300cfm edelbrock heads/ Victor/1050 with a .650 flat tappet cam vs ported 343cfm MW SR's, 440-3/4500 .650 lift roller cam was 60hp......... 652 vs 712.

On that motor, the MW size ports didn't really move the peaks up much in the powerband at all. Maybe 1-200rpm.