I have never used that cam personally, but i just thought i would mention.
You all might just think it is the valve lift of the cam, but you also need to look at what lift the cam is @ top dead center.
like i have a cam that only has i think? 550 lift, but i had an S&S 625 in my motor before what i have now. and there was more valve clearance at Top Dead Center with the 625 in than with the 550 lift in, so the 550 can be just as hard to fit in with a high performance combination.
just pointing this out.
cheers