seriously doubt all of that. prob sticking with the 4ag. im personally hoping hell retain the 16v head. and i slipped up when i typed that big paragraph. the blue top head is more for high compression than the red, dont know why, but it is. so when you take the red top bottom end and put it on the blue top head, you get the "high comp hybrid". id say that with 20v internals and the gixxer setup would be the shit. or possibly go for somthing larger itb wise. arent gixxers like 35mm or somthing? thats small. and if mark was gonna go with a differant engine entirely, i would predict the 3sge n/a motor. its light and its rated at like 130hp. i think.