I run that cam in my 408 and I set it 28/32 and the car is very consistant with that setting and has been problem free.I've heard of racers running them tighter but I just don't want the failure problems.

77 Aspen R/T 60'@1.41 10.76 @ 123.26

http://www.youtube.com/watch?v=Eya3Ue8KoZk