I have a 1981 Corvette and the key will not come out of the ignition, any ideas what this could be?

lights must be connected to a circuit that does not run thru ignition switch.

Ignition switch,bad fusible links, coil,ignition module. I have replaced several switches for this problem. At the coil, when you turn the switch on, there should be power. There also should be power when trying to start the engine. If there is no power while cranking, replace the switch. The reason it hits a cylinder or two is that the power goes to the coil, just not enough to get the engine running..

you have a ground problem at tank or at gage

Could be the module is fubar since you have B+ at the terminal. U can also install a hidden double pole switch that deactivates the fuel pump and ignition circuits. And if you want to be fancy you can do the same with a relay that opens those circuits automatically when ignition key is removed so you do not even have to throw a switch!

Start with dirty fuse connection and then look for mouse wire damage

You would get the correct carburetor instead for electronic computurized controlled carbs will not work on a 1981 Corvette

Check the hall effect switch in the distributor. That will cause this problem for no spark

1981 corvette no power to the power seat need location of the fuse

you will need to pull off the four retaining nuts holding seat in place. Measure the length and width of bottom support frames. Many seats are interchangable.

Theres not enough information, sorry cant help you..