This may be a sign for you. In my research, I have learned that new cams come with this little recommendation: Install NEW lifters.
True story: When I took apart my L67 and discovered half (yes, half) of my existing lifters collapsed due to poor maintanance, I spent many hours trying to clean them out. I was able to get all but two of them working well enough to put back in. So I went to Autozone just to buy 2 lifters. BUT...they only sold them in boxes of 4. But the price was right : less than 15 bux per box. So I said, "Gimme 3 boxes". After comparing the new ones to the old ones, the old ones had WAY too much cushiness to fully work properly.
In other words: new lifters will give your valves more time to stay open, giving you more power. Besides, if the old lifters are worn, they will wear down your new cam. Do yourself a favor and just get new ones. It'* cheaper than having to get a new cam again!
EDIT: jr beat me to it
Welcome, downwardly mobile yuppies, to the dawn of the Age of Nefarious.
1993 SSEi - FrankenJinx - dead and gone.
1994 SSE (136K strong) - 180* t-stat,HD alternator, most unequipped SSE on the club, XM radio, Kenwood CD/MP3.
2006 Chevy Malibu Maxx LTZ - Custom 2.25" manifold-back exhaust w/FM-80. Probably the only Maxx with this system.