"Actual Match Race" 1969 440 'Cuda vs 1973 Firebird Formula 'SD-455'
1973 Pontiac Firebird Specifications
Just like I stated.
SD-455....310 Horsepower........{NHRA re-factored them to 345 HP}
Also, the 'Formula SD-455' was #132 lbs. lighter than the 'Trans Am SD-455'.