I recently bought a '91 fuel tank for my '88 IROC as an upgrade for the fuel baffles. I took the tank to be cleaned out at a local radiator shop. There seems to be a galvanized lining from the factory that was "bubbled up" or disturbed in the cleaning process. Has anyone else ran into this before? Did I just waste a good tank? I'll be away from my computer for the next few days, but I need som response as my new Walbro 255lph will be in on Monday and the install will hopefully happen the next weekend.