Police motors have published horsepower ratings?

(And the correct term is "Pursuit." "Interceptor" was a Ford term.)

What did they call the CHP big block Dodges that prowled the SoCal desert and would run 150 easy back in the early 70's?

Yup... I was in H.S. and we used to dodge 'em. Before that the locals had gumball machines.

http://www.440magnum.com/mopars/2005/january/1972dodgepolarachp1.shtml