headers vs. manifolds

[McGillicutty]

Just recently installed a rebuilt 350 and my brother had some headers that he gave me for free. When I went down to my local muffler shop to finish the exhaust he told me that I should throw the headers in the garbage. He told me I would have nothing but trouble with them and the stock ramshorn manifolds were just as good. The headers are about 2" from the starter. Will this be close enough to damage the starter. Does anyone have ideas on this? Any info is appreciated