Slant 6 Aluminum Performance Head

i love innovation, n folks who refuse to give up. would the ends justify the means? i my case i would want a alum. head for better flow n weight saving. at what cost? alum block has head gasket issues so no on that. FI has its pro's n cons.
Yes,the right head would be worth the cost, & there is only 1 real con with FI...initial cost...