timing is adjusted by the ignition module and feed back from sensors
1986 Pontiac Firebird 2.8 Liter Firing Order
The 1986 Firebird came with either a 2.8L V6 or a 5.0L V8
The 1986 Pontiac Firebird fan relay switch can be found on the back of the fan motor. The relay switch is connected to the fan motor by two retaining screws.
I did not get a answer
At or near the power steering pump.
try a CHILTON BOOK with wiring diagrams
I do belive its the same as the 1985.It would be 123456
check the timing....
6 cylinder=.045 8 cylinder=.045