fuel tank help

[pocoloco71]

classic performance products shows some measurements for an aluminum
gas tank on page 58 of their catalogue. a square tank would be 9 inches
deep, 19 and 1/4 inches long and 27 and 1/4 inches wide. they show a
slope of 2 and 3/4th inches from front to back. I assume for exhaust
clearance coming over the axle. They also show some bed fill gas fill necks.
Also early classic enterprises website has a nice tech article on mounting
under the bed tanks. Hope this helps, poco.