Would I be able to use a prelude 5spd tranny,wire harness,and ecu with a f20b sir-t motor ? I would be dropping it in a CB7 coupe? Any info would be great.

yes, the f20b is just a destroked h22, hence the higher redline of the f20b. i wouldnt want to push it without being very careful of any detonation at first. i tunable ecu would be best though. but yes using a f20b with a prelude setup will be just fine as long as its matching coil i.e. internal or external for ease of plug in.

Thanks