Where is the fuel pump located on a 1990 Chevy Caprice classic?
Mounted on top and inside the fuel tank.
Why wouldn't your headlights on a 1990 Chevy Caprice Classic come on when you've checked the fuses and they are ok?
I will assume that the car is fuel injected/computer controlled carburetor. You will have to replace the intake, the carburetor and the distributor. These parts can be found at your local junk yard. Care should be taken when selecting these parts, that they are taken from a non-computer controlled chevy. If not available, these parts can be purchased from a performance parts dealer, i.e. eldelbrock, MSD.