I think there are more than enough options at the market now. Different sizes, different power levels up to around 1200 hp. The market is so small, that I don't think there is room for more. No one at the moment is going to reinvent the wheel, and make a head that will be a head above the others. That being said, It's a pity that the FBS heads weren't developed more. I have had two sets, and just got a third one. We are goig to try if we can get something out of them. The intake ports are smaller than B1's, yet they flow better. Got 440 cfm with 2.30" intake valves homeported. Now we'll test with a more knowledgable guy i we can refine one with 2.40" valves. They could be the best true wedge style head design around.