do i need a cooling system resovior ?

the factory tank from a 73 up Dart will fit very nicely, over on the passenger side. On my 68 Barracuda I just had to drill a large locating hole down in the core support. But yeah, I did have to relocate the horns. Actually, I took them off and threw them into a box up in the attic, with all the other horns that I have relocated; horns just get me into so much trouble......