Powered initially by the OHC six, the PFST project also served as test bed for a small-block (303-cid) V-8, with special tunnel-port cylinder heads. Known as PFST ('Pontiac Firebird Sprint Turismo'), the racing prototype was developed largely by chassis whiz Herb Adams. In 19, Pontiac engineers were busy with a project to get the Firebird Sports Car Club of America (SCCA) ready, which led to the development of the Pontiac Firebird Trans Am.
