My freind has a j-spec b16a1 head and I'm going to put ITR cams in it. So what spec clearance do I use for the cam lobe to rocker arm clearance, the b16 specs or the ITR specs. If you know what the specs are for the b16 and ITR can you plz put them up for me too. I've got them some where, but I can't find them. Thanks!