I have an 88 firebird with a 305 V8 with a 3 inch custom exhaust and it pushes around 350 so my guess would have to be somewhere around 300 hp it kinda depends on what else is in the car.
Between 165 and 225 depending on exactly which model. http://www.thirdgen.org/1987-pontiac-firebird
it is under the alternator
Ram air, a stronger V-8, different hood, special, wider wheels, tighter suspension,
.035
The shifter cable needs adjusted.
Pinks - 2005 1987 Pontiac Firebird vs- 1988 Ford Mustang was released on: USA: 19 July 2006
The 1982-1992 Pontiac Firebird
Something is wrong with the emissions system.
If it has a 700R4, it is in the tail shaft of the tranny on the drivers side.
I have a 1987 Firebird Pro/Am with a posi rear and V8. It came from the dealer that way. Totally original.
In the carb right behind the fuel intake line
The best you will get on the highway is around 24 mpg with either the V8 or V6.