Hi A guy wants to sell me his 400 stock intake manifold for my carwhich is a 69 GS 400,but I am not sure if it is correct.PS it fits.Is there any specifis markings to tell me if it is correct.Thanks Curtis
The '69 intake manifold should have the number 1386003 cast in on the top toward the front, right above where is says "Firing Order". Here is a link with all of this information: http://www.atlantabuick.com/CastingNumbers.htm Larry