In the MP book they say to use .850 x advertized duration to find approximate .050 numbers for cams in the mild range.

It works pretty good for the most part up to the MP .590 cam

For me the MP cams below matched the .850 math

.484 @ 284 = 241 @ .050
.509 @ 292 = 248 @ .050
.557 @ 296 = 251 @ .050

and actually measured the same or very close.

But the MP .590 didnt

.590 @ 312 = 265.2 @ .050, it actually measured 272 @ .050


Reguardless, I like the All the MP cams above, the MP .557 is a good one. My measurements above were on the BB cams only. I assume, the SB lobe profiles would be the same. mike