Don Stellhorn’s 1964 GTO race car has features in many magazines. The body modifications and built motor proves this car is serious about going around the track. The GTO runs a special carbureted LS3 V8 stroked to 416 cubic inches and features L92 GMPP CNC heads, Edelbrock Victor JR manifold, and a custom 1000 cfm Holley carburetor. The combo is good for 652 horsepower and 529 lb-ft of torque. Hot Rod shares many details on the GTO.
Source: GTO Road Racer via Bangshift