The second-generation Firebird is one of Pontiac's most successful cars ever and it remained in production for 11 years.  Perhaps the purest and best-performing cars are the early-1970's Firebird Formulas.

Specifications:
Engine
Type:  V8
Construction:  cast-iron block and cylinder heads
Valve gear:  2 valves per cylinder operated  by a single camshaft, pushrods and rockers
Bore & Stroke:  4.13in x 3.74in
Displacement:  400 cubic inch
Compression Ratio:  8.4:1
Induction System:  Rochester 7043263 4-barrel carb
Maximum Power:  230 bhp at 4,400 rpm
Maximum torque:  177 lb-ft at 3,200 rpm
Transmission
4-speed manual
Body/Chassis
Steel monocoque with ladder-type front chassis rails and 2-door coupe body
Running Gear
Steering:  Recirculating ball
Front suspension:  Double unequal-length wishbones, with coil springs, telescopic shock absorbers and stabilizer bar
Rear suspension:  Live axle with semi-elliptic leaf springs, telescopic shock absorbers and anti-roll bar
Brakes:  Discs 11-in front, Drums rear
Wheels:  7x14 steel
Tires:  F70-14in
Dimensions
Length:  191.5 inches
Width:  73.4 inches
Height:  50.4 inches
Wheelbase:  108.1 inches
Track:  61.6 inches front and rear
Weight:  3,766 lbs.