hello..wow!! awesome comments..let me ask this....why dont you try modifying Chevy Inline 6 head and using the PES Bolt-In Plates? Have you? Have you seen what it does? its amamzinggggggg....Its nice to have great ideas!!!!so try the idea of modifying with whats available!!!!
I guess until you do it you just wont know-how can you think of a high $$$ 12 port head when you cant find 1000- 1500 for a VERY good high flowing head?.... I am not trying to be a smart ass or cause a problem, but whats up with all this talk of head modifying? have you modified the head you already have?

Try it and for a daily driver you will be VERY Amazed.... (speaking of cfm,s)now, 300 plus and 200 plus on a race is a good start so why not a 260 and 175 street head?

Lee