Boy, lots going on while I was away...
No amount of detuning or parts replacing will change the fact that it's a bigger displacement engine with waaay more torque than a 1600 (which is what Art said the owner was complaining about in the very first post). Stan, Danny, I think Gordon (and probably someone else) have already mentioned this. Detuning by using a milder cam, smaller venturis or even smaller carbs (to do this properly lesser flowing heads may be required as well) are only going to bring the powerband down lower and make the torque situation worse (as has been mentioned as well).
Trading it for something smaller (as people have already suggested) is one avenue, but Art, first I would try adjusting the throttle cable at the carbs so it only gets 1/2 or 2/3 throttle (as Ron and I think someone else alluded to) and see how it drives. If this works, a far cheaper fix, and when resale time comes some lucky bastard will get a very lightly used 2332. And if the owner ever feels the need for more power, it's already there...
I told myself I'd never say this here, but- as usual, just my 2 1/2 cents (I'm Canadian, eh!). Al