I am not sure but I think my Camaro 67 chassis it´s clossed. I mean that the 2 upper A arms are closser than they has to be. Can some one give me the following measures so I can check it?

http://i56.photobucket.com/albums/g183/POCKER01/Camaro67/CHASISAARMMEASURE.jpg

30 1/2".
This was measured off a subframe that was spot on in all other factory dimensions, but expect perhaps +/- 1/8". Hope this helps.:)

Thanks BlackoutSteve
Are both measures the same?

Sorry, yes.