If you have a front sump Canton pan, I would recommend jacking up the rear of the car if you absolutely, positively want to extract all of the
oil. I recently had to drop my
oil pan and on my level wood ramps I still had at least 1/2 quart in there. Notice in this pic that the pan orientation when installed does have a slight set-back to it (relative to the level frame). FWIW, this particular Canton pan was also recently powder-coated (Canton will send you the stickers if you e-mail them).
-Dean