450 HP 273 video. Sound alone is worth it.

Toolman,
What would the numbers be if you ran the old Mopar P4120148 or P369058 small block mushroom lifter cams in a highly modified 273 engine? The numbers on the 148 are 320-320-116* with a 102* centerline. Valve lift is 0.630". Power range is 4400-7000 RPM's.

The 589 cam is also 320-320-116* with a 110* centerline. Valve lift is also 0.630". The power range on this cam is 5200-7400 RPM's.

This is a 10.5 engine, highly ported heads, 750 carb, single plane, race headers.