Hi dave,This cam has a fast in. ramp,.012 lash 290
[email protected] 260
[email protected] .670
[email protected] ,the ex lobe is slower with
[email protected]@.050 and only
[email protected] like 2 differnt cams.I've had that same came for 20 yrs now and used it in 2 differnt motors,worked real well both times.I don't know how long Crane was making it before I got it but they were still making it untill they closed,same part# same grind#. Bill.