Does the fuel line need to be disconnected ?

It helps but you can just flip the manifold out of the way. I removed the line on mine if you have the tool to remove it takes less than 30 seconds just have some rags over the line so you don't take a fuel shower

Then that's a job I'll be talking this weekend.
I'll have to disconnect the fuel line anyway. As long as the intake is off, I will be swapping out it with a FAST 92mm intake with 42lb injectors. :yesnod:

Just did this job on my '99 today without removing the intake. I got it done, but had much grief with the hose mentioned above being in the way, getting the threads to start, and getting the wire back on. Had all the tools mentioned in the two videos I watched and then some. Only thing easy was dropping the socket on the unit and removing it. Next time, I'm going to remove the intake to do it.

Just did this over the weekend. Very helpful writeup. Took about 2 hours and change, but I was taking my time and thinking things through very carefully. I needed to innovate a bit to get the new one in without falling out of the socket, and of course the connector ended up being 180.0000 degrees from where the old one was, so I think an hour was spent finagling that connector into place with a long screwdriver and piece of coat hanger wire. The stiff wire did not want to let me turn the connector!

It is so cool to look back at the note I sent in 2016 about having Tony's Corvette Shop replace my oil pressure sensor in my 2000 C5. Well, those terrible GM OEM aluminum sensors don't last. So after five years, I just had Tony's Corvette Shop replace it again. It started reading at max again and when we pulled it out and looked at it, it was full of leaking engine oil. I am operational again, totally due to the great service at Tony's Corvette Shop. Took 1.5 hours. Did not remove the intake. Changed out a turn signal light and did an oil change and filter also.

Running fine now.