STS turbos are a d**n joke. Search the web for why... I'm not going to waste my time explaining it when it's been explained and proven time and time again elsewhere.
As for the 22RET swap... I'm an enormous fan of turbocharged engines, however, in a wheeling rig where simplicity is the name of the game, I'd favor a different NA engine over a turbo engine because there's less to go wrong. 4.3s can be found dirt cheap and will give you 190 HP and 260 ft lbs if you get a CFI.
