I've got a 2000 lx civic with a b16a engine swap, the transmission blew and I've got to get it replaced. I don't know a whole lot about transmissions and am looking for some advice, what trans do I need that will fit the b16a. I've already looked for the trans serial number, couldn't find anything.

 

Okay I have a b20a and its inactive is really low like under 500 and its running genuine rich and my timing has been off and changing it self a lil and my 3/4 choke resembles max speed before it fired fucking up well to me I thought my ecu cause it controls my air fuel and inactive and timing just somewhat considering what u folks would consider I have been told iacv yet Idk I'm not tossing any codes but rather what do u folks believe I'm getting somewhat pissed at it and can't observe anything to help me so any assistance would be greatly valued thanks.
Kodi nox