[R68GTO]

Originally Posted by Lee Stewart

A question came up in the Ebay section about the horsepower rating for the Pontiac RAIII 400. It is both 345 and 366. The former is the Firebird rating while the latter is the GTO rating. The RAIII was standard on both the 1969 GTO Judge and the Firebird Trans Am. The horsepower ratings were unchanged for the 1970 model year.

I believe John D. mandated that no Pontiac have a higher HP rating than the GTO. A throttle stop plate was added to the F-body carbs to prevent them from reaching the same WOT point.