Couple questions about cam/springs

Then you should get with Hughes and see which seal. They can tell you the diameter and such. There are many different ones. I think a real popular one is like .530" and Comp sells the tool. Being a single spring you'll have plenty of room. But I would still call hughes to be sure. You may not need to cut the guides. But, it's better to be safe than sorry, plus, if you do, you have room for upgrades later.