Sr20det Swap- KA or SR throttle bracket? + Identify feint metallic sound

[2slow2go]

Do i use the KA or SR20 throttle bracket on the sr20det swap into an s13? I read that both need modification?

Currently i dont have either. Is there a part number for these parts?

Please help!

In addition, I just got my sr20det started. I hear like a metalic intermittent feint sound coming from the rear/lower part of the engine. Sounds like a very feint low fluid power steering sound. Any ideas? ( new waterpump, full fluid in power steering, and still persists. The sound doesn't get louder when i rev the car or anything). Also i changed the clutch with a brand new exedy one with throwout bearing. I believe it not that.

Thanks