I don't know if they are still available but Motorcraft used to sell a hinged plastic hose 'bender' which would allow one to use straight hose and put a 90 degree bend in it without a kink. And they were reusable.
Awhile back I had a problem with my 351w killing water pump gaskets. The gasket between the water pump and backing plate. Be fine during warm up, first time to 6500-7k and poof there goes waters spraying. Tried all kinds of sealants and bullshit finally took the partially kinked heater hose out and put the proper formed hose. No problems ever again........... Buy the formed hose, you have to cut them a bit for the perfect fit but then no restriction and hey.....easier to put on.