The OP is using 273 rockers and not rollers, so some of the B3 info is not pertinent. The 273 rockers' pads:
- walk/scrub across the valve tips from intake to exhaust side when going from 0 to peak lift (rather than rolling back and forth across the tip during the upward lift cycle like a roller)
- the rocker ratio actually increases as approaches peak lift (rather than decreasing as it approaches peak lift as with a roller)
- side loading on the valve occurs, unlike with a roller.
So some of the old Chrysler info is likely oriented towards that, and towards the side loading in particular. B3 does mention that sort of thing early in his articles, so gives some insight, but moves on to rollers.
