There should be a vacuum line picture diagram under the hood. Non-US cars did not have EGR vacuum lines I believe. If your car is right hand drive, the hearer hose route around the block could be a little different.
The attached pictures may be helpful. It doesn't clearly show the route of the blow off valve line though. I think later Supras dropped the power steering vacuum assist line also. There is a vacuum nipple that comes out of the backside of the intake manifold that feeds a T connection on the firewall for the heater and cruise control.
Hope this helps you get started.
Bru
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