I'm planning on getting some 1.7 harland sharp roller rockers on my 97 dodge ram 1500 4wd and wondering if I need pedestal or stud mount?

 

I believe pedestal is the OE style if you are planning to use them with stock heads. Stud mount are definitely used with the Edelbrock aluminum magnum, as any stud mount small block Chevy rocker works on those heads.