Theone, the 12 port, aluminum Sissell head is substantially less expensive than every overhead valve head conversion I have ever seen for a Model A, y'know, like 2 less cylinders, and the craftsmanship is amazing. I have seen him make one of these heads and I am amazed at how little they cost. There is little else that will yield this much increase short of a forced induction device. And just think what you might do with both !!!!
