I am putting a big bore kit on my 110 that is in my 70 frame and the timing advance was stuck on the cam pretty bad and cracked. I have a 125m that I could take the whole head off of, would this fit on the 110 cylinder, or would the timing parts fit. Would there be an advantage of the 125 head like bigger valves, better performance with the 123cc 10.5:1 compression kit I'm putting in.