This is the Adam Drake Edition .28 cu in (4.6cc)
Standard Truggy Engine with Turbo Cylinder Head from Trinity.

FEATURES: Built in Italy to racer Adam Drake's specs
Tailored for the American racer on American style tracks
Power band created for truggy chassis
5-port cylinder construction
Composite rotary carburetor with 9mm insert
Rear multi-port exhaust
Ships in a foam lined wooden case with Adam Drake's signature
printed on it

INCLUDES: Adam Drake Standard .28 cu in (4.6cc) truggy engine with rotary
carburetor & 9mm inset, pinch bolt to secure carburetor, exhaust
gasket for Force and Novarossi type manifold, instruction sheet and
wooden case

REQUIRES: Car blend nitro fuel with 20-30% nitro content
Air filter, MSFG1660
Turbo glow plug, OSMG2695
Plug wrench, glow starter and track equipment

SPECS: Displacement: .28 cu in (4.6cc)
Bore: 18.35mm
Stroke: 17.60mm
Maximum Power: 2.9hp
RPM: 34,500
Ports: 5 plus 2 by-pass
Weight: 12.9oz (365g)
Crankshaft: 14mm turbo, SG type
Diameter of Exhaust Opening (including gasket): 0.71" (18mm)
Diameter of Carb Opening: 0.65" (16.5mm)
On-Center Mounting Holes, Opposite Side: 1.5" (38mm)
On-Center Mounting Holes, Front to Rear: 0.83" (21mm)
Backplate to Front Bearing: 2.5" (64mm)
Overall Height: 4.4" (112mm)
Height, from top of head to bottom of mount flanges: 3.8" (96mm)