Heres an interesting hybrid question:

how would you go about making a b-series motor run in a 1st gen crx DX(carborated). The car has no computer and only the most basic engine wiring harness. I've seen plenty of info on the Si/b-series conversion, but none on the carburated lower models.

Would you need to wire up your own harness to the ECU? Could you somehow use a B-series wiring harness?

Main reason I ask is the base model 84-87 crx is more than 100 lbs lighter than the Si.