I just went from a 230/230 .480/.480 @ 110lsa to a 246/253 .516/.525 @ 108lsa. Engine is a mild 455 in a 79 bird; race weight is 3600 with me in it. I regret that I did not have time to degree it (I found the cam gear threads almost stripped in the old cam
and had to swap cams in a thrash to make a race - this cam was on hand and in it went).
The interesting thing about this cam is apparently the power band range did move down even with the larger duration numbers. On the old cam I averaged 1.63 60's most of the time. New cam the 60' is exactly the same but 1/8 ET is off by about .1 and 2mph. Old cam was shifted at 5500; new cam works better by shifting at 5000.
I'm intrigued by this cam for some reason. I'm going to switch to a little tighter converter and may try some rhoads lifters and a performer rpm to see what happens.