what size is the seat tube? if it is 19" or bigger, you should have enough room. (this is not the same with every make and model of bike). i have a 19'' frame and the same set up you are going with. i also have the SBP HD airfilter, so i had to cut like a half inch off the front mount base or my motor to fit that.
but if you dont use that or have more room then me, you should be ok.. get some sizes up, and ill take some pics of how my setup fits for you.