Highest flowing sbm heads?

My pistons were always going to cost 1000, I'm not using the victor, I have a ritter block already, 1300 for headers is only 200 more. Is there another head option that performs as well that is cheaper than Victors that I missed? I did ask if there was another option.

can’t think of anything out there with more potential except either W8/9 or P7.
Great you have a block. Keep us up on the build sounds fun!