My old pump gas Duster (511 C .I.) had a Comp Cams solid roller ground for Benshoff (SP?) racing in WI, it was 260@.050 with .420 lobe lift on the intake and 266 @.050 on the exhaust with .409 lobe lift(EDITED ground on a 108 LSA in at 107 ILC)with 1.65 H.S. roller rocker, that cam pulled really hard up past 7800 RPM in second gear before I got scared and shifted it. I shifted it between 7000 and 7300 RPM all the time, it ran really good and was easy on parts boogie That cam with the low deck six pack made peak torque at 4500 RPM and peak HP at 500 RPM but ran faster at the track shifting at or above 7000 RPM shock shruggy
290@.050 sounds like Pro Stock hemi cams down

Last edited by Cab_Burge; 06/07/20 04:56 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)