I found this page showing hp and torque ratings for a few engines:

http://people.smu.edu/acambre/nova/engine_statistics.html

what is the cause of the huge power drop off in 72 for the 250? emissions stuff or something?

if my 194 has more power than the a '73 250, why wouldn't i stick with that? is it b/c the 250 has more potential?