To find them, you'd need to:
* Look underneath the car: This is the best way to locate the lines. You'll likely see a fairly substantial fuel line running along the frame rails, possibly with smaller lines branching off.
* Consult a repair manual: A shop manual specific to a 1986 Corvette will have diagrams showing the exact routing of the fuel lines. This is highly recommended for safety and accuracy.
* Be careful: Fuel lines are under pressure and can leak fuel, which is highly flammable. Take precautions if you're working near them, and never work on a fuel system with a lit cigarette or open flame nearby.
Because of the complexity and potential hazards, if you need to work on the fuel lines of your Corvette, it's strongly advised to consult a professional mechanic. Incorrectly working on fuel lines can lead to serious injury or damage to your vehicle.