Cam Theory and Application

Not talking about 'numbers fudging' for selling products, or to show some
'massaged' Horsepower and Torque numbers.

A 'true' Chassis Dyno, to help tweak the Timing and Carburetor, after the
installation of a new 'Camshaft'.

Remember too, back then you had to 'lock-up' a Distrbutor with a 'Performance Curve',
as not everybody was running a Mallory or Accel.

New 'ballgame today' with access to a lot more information.

Nearly everybody who had an extra $75, was sending their Performance Car to the 'Dyno-Man'.
As far as chassis dynos they are useful but I've seen combos that were slower at the track after picking up HP on the chassis dyno. Think about it. It is like testing oil pans on a stationary dyno,NOT the same as in car at all.