Pontiac headers?
Can anyone confirm these are Pontiac headers? They have a #R10-50Q on the flange but nothing comes up when I do a google search. I'm guessing Pontiac because of the angle where the bolt to the head but I could be way off base. Thanks
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70 Chevelle Vert L34 M21 28-A 791
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70 Chevelle Cpe L?? M?? 926-99616 755
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