That hose is called the by-pass hose. When you buy one, it's made too long to fit a variety of applications. As c6fastback mentioned, they need to have the ends trimmed off to fit each particular application.
This an application specific hose. You can't use regular old heater hose or it will indeed kink everytime. You need to by a "small block Ford bypass hose". It's not very big and pretty cheap. It has the 90 degree angle you need formed into it. There is no good substitute that I know of. And I've tried. I know keep a spare in the garage since we have more than one smallblock vehicle.