[quote=turbobitt]So this is guess, based on that cam card it could be a Howards cam grind, Lobe numbers BHR243400 and BHR247383. See page 10 in the below link.

https://www.howardscams.com/sites/default/files/lobe%20list%20email%201-20-2014.pdf

If so, looking at the intensity between .020" lift and ..050", the number difference is 27 degrees. As for comparing to a solid roller, common ranges of around 27-36 degrees with 28 being considered very aggressive and would be regarded as a higher maintenance solid roller requiring a lot of spring and would definitely run a premium style lifter if running a solid body lifter. My concerns would be axle and bearing degradation especially if the valve train is not kept in control.
AG. [/quote

thanks for the comparison and information, i never thought of comparing to the Howards camshafts, and yes it would be too much of a high maintenance if converted to solid, thanks for pointing it out.