Via PM:

There is no 'better' engine that can consider all those points.

Regards to maintenance? The engine you have. No bastardizing to deal with.
You can still retrieve PCM codes without a scantool.

Performance? Off the line, or freeway passing? Off the line, keep yours.

Regards to maintenance? Yours. Hands down. No bastardization.

A swap isn't a walk in the park.

Fiero guys do it all the time. And Spiral had a S2 L67 and 4t60-hd combo running off a chipped 93 pcm.
You can not run a 4t65 off OBD1 though.

Swapping a series II in isn't really that hard. Pull the axles out of the car, undo the wiring harness and radiator hoses and fuel lines and downpipe. Pull out engine and tranny. Drop in new engine and tranny, put axles in, install new wiring harness and PCM, splice wires, radiator hoses, exhaust, and a few other things I'm sure I forgot to mention. You'll also have to add the OBDII diagnostic port under the dash in place of the OBDI port, but thats obviously not a big deal.

Its really not that hard and can easily be done in a weekend. The hardest part is splicing the wires, get FSM'* from the car your putting the engine in and the car the harness came from and you're all set.

Not saying whether you should do it or not, just that its not as hard as some people make it out to be.

Just my $.02.

Shawn