Back in the early 2000, SS cars were running .750+ lifts. I doubt that have gotten smaller
One mag article reported Paul Rossi's 440 ss motor was using a .750 lift roller, and .035 lash, which would be more in line with Vizards methods.
Crane R286 .750 lift roller was the baseline 440 Superstock cam in the late 70's.
Mark Heffington owner and designer of Cam Dynamics made that lift possible with his lobe designs, no one else could make the valve heads stay on the valves back then with that much lift
Hence Harvey Crane buying out the completion to get his technology
