It was an AFM N91 cam. Why don't you want to rev it high? If I had a 347 I would look at a XE282 with possibly a set of 1.7RRs. I think that would be a nice cam. Or maybe a VooDoo stick. Also have you talked to Cam Motion Home Page ? They are some good guys and if you give them a starting point they might could cut you a nice cam.