Hi Callum
Looking at top photo the two closest connectors are fuel in and return, left is from fuel pump right is fuel return to tank. The other connector on top is a breather to carbon cannister. For linkage, the last photo the right hand, primary throttle, should have a U shaped linkage. These usually come from a 2litre Cortina or Escort, which these carbies come from. My Celica isn,t available so I cant take photo for you at the moment. See if I can on weekend.
Regards
Tony
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