call any cam company they use many types of springs or look the spring up in a cam book 1.585 is your set up height some time i will use a longer stem valve to get a taller set up or vlave locks and retainers all can be used to get higher setup and keep from coil bind a howard spring 98341 is od 1.385 id .800 dual 105@1.625 and coil bind .910 pontiac/olds v8 spring or cut the spring pocket for a 1.430 O.D@1.680coil bind 1.100 small block ford the first one s are the ones i would use and steel retainers i will add you can cut thru the head with the spring cutter so watch what you are doing and hit the books and do your home work you will find some thing that will work i do this stuff all the time