So I have bought a complete gx160 head for my champion 6.5 clone (gx200 with shaft mounted rockers, switched so I could fit 1.2 ratio rockers and have higher compression) and am wondering if it will work with out porting or if not could some one explain what I have to do make this head work I have only a little idea of whats involved with porting. sorry if I don't respound fast but I work night security so i'm pretty much nocturnal and use the computer there.