Mine is definitely paint on the tank, no undercoating except the wheel wells. The covering is a typical factory application in that it has a lot of large runs at the bottom of the tanks lowest shape so application technique was quick and not exact. It most certainly is not a well masked off and carefully applied spray job that one would usually do if painting themselves. I'll take some picture and post later.
Any other LOS Camaro owners out there -or- appraisers who have black sprayed tanks?
Attached are images of my 67 4B LOS tank that is painted black. Due to the flash and dried dirt on the tank, it looks lighter but I can assure you it is black. I looked closely and used my fingernail and is definitely paint and not undercoating. As you can see it was applied in a typical production line fashion freehand. No masking at all. The paint stops on the edges of the tanks visible bottom. You can clearly see the overspray on the springs including dried drips with some overlapping the remaining gray paint of the spring. The bottom of the tank has the largest amount of runs that gravitated to the lowest parts. It is obvious the paint has been on the tank for a long time and not some carefully applied job that one would expect to do if painted after delivery.
Any members from the Camaro Pace Car group present and care to chime in? I know you have seen this before.