Do you know if the cam was degreed in or did who ever installed it line up the dots? If it was degreed in where was the intake lobe center installed at in relation to top dead center ? If not degreed in it may be time to do that BB Mopars love having the cams advanced, I've done a bunch of cam and engine tuning, I've never seena BB mopar like the cam installed straight up, let alone installed 1 or more degrees retarded Most of the BB Mopar motors I've played with cam timing like the intake lobe timing like between 4 to 6 degrees advanced