In my opinion, neither one of these schools actively "recruit" arms in the 70's -- rightie or leftie. Both colleges you mention are very active on the local level, i.e., JUCO "feeders" -- especially ASU. And I imagine they occasionally find kids that can just flat out pitch, regardless of velocity. I don't say that to discourage you from purusing these schools, but look at their rosters. It is somewhat easier to be discovered when the coaches can either 1) see you more often (HS or JUCO), or 2) rely on a coach-friend/associate for constant feedback. Also, many of the local kids attend nearby schools because in-state tuition is much more reasonable than out-of-state and the college coach can "save" a little scholarship money.
Bighit's opinion (I know he has one) might be beneficial here.
-PD