the left or right one?

also what are these three wires for. (orange red and green)

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and what does this green wire go to on the other relay?

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And what is the connector with the prongs sticking out for? (right in front of the two relays)

 

Easy way to pull one relay and start the car. If you hear the fuel pump prime and start you know that is not it. So try the next one.

That is how I found mine. I know on my 86 camaro, the power to the fuel pump relay comes via a thick orange wire.

 

the one with the prongs is your electronic spark control module, the other two are maf power and burnoff relays. the fuel pump relay is a 5 pin straight connector. my 89 iroc 350 is like this.

 

Those are Fuel pump relay and Fan relay, not MAF/burnoff relays. Those are elsewhere

From the ESC module Id assume you have a LO3, and being unplugged Id assume a carb swap
The relays are in upside down (doesnt affect operation)

Id guess the first pic is the fuel pump relay with the Orange (12v battery) Red (test lead) Green (ECM enable) Gray (output to fuel pump)

It is easiest to identify by the test lead, sometimes its 6" long near the relay, but Ive seen them ran across the engine near the AC box
The function is the same, add 12v, the relay clicks on and the fuelpump enables

The second relay is most likely the fan relay
It should have heavy Red (12v battery) Black (ground) Green (ECM enable) heavy Black w/ Red stripe (fan output) Brown (Alt/fan common at C100)