Classic/Antique Car Repair: 1964 buick skylark 2door coupe none pillar, buick skylark gran sport, 1964 buick skylark

Question
i bought this car its all orinagal the numbers match tran motor and rear end the series # 4337 but the motor is a 355 wild cat and a hurst 4 speed witha posie rear end i cant find a other car like this with the same motor of trans was it speical ordered also it has factory headers and speical heads but its not a wild cat i am the 2 owner the lady died it has 23.000 miles the badge says style 64- 4337 body 4202 ezlp4fu and it has speical gt rims with a bench seat

Answer
From what I can discover Buick got into the muscle car biz in the middle of the 1964 model production run. The engine in the 64 GS was the 401 cubic inch "Nail Head" engine. Seeing as it was a quick quick get it to production because the GTO is selling the pants off us, they probably used the Wildcat decal for the sake of putting something on there. Check the following web sites for more information.
Brad

http://musclecarclub.com/musclecars/buick-gs/buick-gs-history.shtml
http://auto.howstuffworks.com/1964-1965-buick-skylark-gran-sport.htm
http://en.wikipedia.org/wiki/Buick_Skylark