JoeP
I have a 1979 FI SB with only 63 original miles on it. It was driven home from the dealer and left to sit in the garage. The tank had the original gas in it. I would like to replace the tank. I purchased one, however, the supply and return intakes are a different diameter than the original tank. The original tank had the same size stubs on it. The return on the new tank is smaller. Will this cause a problem if I use the new tank. 
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Wayne
Did you buy this tank new? If so could you contact the supplier with this question. Personally I would think not since this is only a return for the gas.
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