Mopar sb 273 rocker arm dual spring question

Professor Fate said
Why on earth do you think you need dual springs on a small-cammed 273?
Get a set of 340 springs and call it a day. I've run those springs with those rockers on mild street builds for decades and never had an issue.

I may have said dual springs but I meant single springs with a damper and the 340 springs I bought are too big. 1.494 OD.