He's Right.
Not Every car that recieved the 7a-fe motor; had the same arangement. Obviously, some cars have things in different places. Such as Brake booster, Fluid Resiviores, relay boxes, clutch lines, ect ect ect.
The 7afe was a popular motor too. It was in a wide aray of vehicles. So instead of making each peice different for the same motor, it'd be easier to just mass produce one part, then use the bolt-in point if they needed it or leave it if they didn't. Some of the following vehicles will scratch their heads and wonder the same thing versus the celica's setup. lol
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7A-FE Applications:
7A-FE Applications: