those look very nice, and while it would be a wet dream of mine to get some heads like that, i think i'll pass on your offer for now. i'm trying to be a little more conservative with my engine, plus while i'm still in the planning stages, i'm still figuring out were to spend my money. i baught the same book you have when i got my engine. nice book i like it. of course by now i have more and tons of reading material from this website. 10,000 rpm, that's has to sound amazing, when you get it running post some sound clips. one of my favorite sports is F1, high reving engines are music to my ears. what are you putting it in?