What manual transmissions were behind the magnums and do they fit into my car

Im not running an ecu. The magnum will be a carby. I already have 2 automatic cars running a a518 and a 727 so i would like a manual car next for a change. So the manual transmissions that came out behind the magnums are hard to find and need the factory ecu?
In the usa, do you call the manual transmissions a standard transmission?
Being a manual trans, a computer isn't needed for use. I would look into the gear ratios within the transmission and decide if it is OK with you. There spreads aren't what many here want to use.