RB20s are just like CAs in my book. They can definately be cool, good power motors. Just realize it is an older motor that has seen more abused. Be OK with that, in fact, be THRILLED about it. Take the time and money to replace gaskets and other misc. shit right off the bat. Oh, waterpumps are notorious on those motors too, so get a new one of those on before it even gets near the engine bay. They arent as capable of very high hp numbers as its younger, bigger brothers either. They make pretty decent numbers though, I think I have seen 300-350 with out MAJOR internal work.

One a side note, fuck LSx swaps. Unless you have a good source for the motor and can do all the work your self / with the aid of friends that work for little to nothing, you can have a pretty stout SR or RB.

my two pennies