What Cam?

Yes. Also of important note: Make SURE before you replace a cylinder's pair of springs, that you bring that piston up to TDC before removing the springs. Even with air in the cylinder, it's possible you could bump a valve and soon as it opens it's fallin in the cylinder. If that piston was low in the bore, that would SUCK, because then you'd have to remove the head to get it out. By bringing each piston up to TDC as you replace springs, they will only fall against the piston if you bump them. You can use a compressor like this:

http://www.ebay.com/itm/KD-Tools-Un...H_DefaultDomain_0&hash=item337930e45b&vxp=mtr