Join Date: Nov 1999
Location: West Richland, Wa. USA
79's did not have computers. More electronics than first gens but computers started with third gens (later years). berlinetta started in 79 it replaced the LT.
The thing you found underthe dash is probally some type of electronic resistor/capacitor thing (does the car have elctric windows, power locks, air, etc. these options bring alot of black box things).
68SS ZZ4, 4sp T-10, 12 bolt, getting painted
78Z28, 330hp vortec, TH350, 10 bolt (just finished)