[Jay S]

That graph of the T makes the S and H look pretty scrawny. Graphs look like they are to scale, kind of rough. Not easy to measure and plot the specs over the nose by hand like HO did. I use regressions tools to find the curve of the polynomial that was used for the lift curve. It is usually short polynomials segments for the section of that cam I am looking at.

I did some calculating once to get an estimate of the duration of the Crower 60919 and the SPC-8 with Rhoads Vmax lifters at different rpms and bleed down rates. My conclusion was the long seat durations were better with Rhoads. Spc-8 appeared like it would out perform the crower. The faster the velocities made the Rhoads less effective. It also appeared like a symmetrical cam and a symmetric cam would act nearly the same until the lifters were pumped up. The lash was moving the profile into the area of the cam that was symmetrical on most hft cams.

Looks like the T has just under 140* at .2 on the intake. Just under 150 on the exhaust at .2....

Next time I have both vmax and vpro here I will take them apart and compare.