General information
Model: Honda CBX
Year: 1981
Category: Custom / cruiser
Engine and transmission
Displacement: 1046.00 ccm (63.83 cubic inches)
Engine type: In-line six
Stroke: 4
Power: 100.00 HP (73.0 kW)) @ 9000 RPM
Compression: 9.3:1
Bore x stroke: 64.5 x 53.4 mm (2.5 x 2.1 inches)
Valves per cylinder: 4
Fuel control: DOHC
Cooling system: Air
Gearbox: 5-speed
Transmission type
final drive: Chain
More details Consult a Honda repair manual.
Physical measures
Weight incl. oil, gas, etc: 274.0 kg (604.1 pounds)
Chassis and dimensions
Front tyre dimensions: 3.50-19
Rear tyre dimensions: 4.25-18
Front brakes: Dual disc
Rear brakes: Single disc
Speed and acceleration
Top speed: 222.0 km/h (137.9 mph)
Other specifications
Fuel capacity: 24.00 litres (6.34 gallons)

Cecil is right, 9.3 compression, that thing is perfect for a turbo!