Until someone maxes out the stock heads I don't see much reason for the Billet heads. The only application I can see for such an item is top fuel drag racing. Very heavily boosted engines could benefit, but it wouldn't make any difference until well over 2000hp.
hah, e-solver i'll take your word. you phrased it as a question. now how about a price =] cam gears would definitely help on the upper rpms, and together with programmable computer... turn and burn.
Think Neil jumped in a bit quick, I showed him our dry sump and slide throttle assy and said we were open to making cnc components. CNC water cooled heads could be done but cast heads would by a lot cheaper and more practical.
Kelford make a new scissor gear to adjust cam to cam timing not an adjustable timing belt gear.