Honestly, it just makes the trick flows look like an even better deal than they already are, especially if you want to bolt them on and go.
It's too bad there isn't an intermediate jump after the TFs. By the time you pay for the CNC porting and bolts/rockers/shafts/pushrods, you're up over $5000.
At this point in time, YES! Then there is a time when TF wasn’t even entertaining the idea of a SBM head. Any street build I’d start from scratch now would get the TF heads.