Okay, I thought I was smart enough to do it, but apparantly I'm not

lol.
I installed my 00+ ITR intake cam in place of my original 98 ITR intake cam. Put everything back together, adjusted the valves and *thought* everything was back the way it was supposed to be.
Well...the valves are clattering more than they should. First dumb question: does that mean they're lose or tight? Second dumb question: Does anyone have any tips for a not-so-good valve adjuster (me)?
Apparantly I did something wrong, so I need to readjust but need to do it right this time. I'm not into doing it three times

Any advice is welcomed!!
btw-I've got the snap-on tool and the bent feeler gauge already, and followed the directions in the Helm's. I'm guessing I need to get the valves a little tighter, but want to make sure.