V
Guru
The safest way to do it is to remove the heads. There is a tool on the market for about $275.00 that is designed for on the bike removal but I have never spoken to anybody that has used one or have I seen anyone on the forum mention it.For those who have wrenched into their motors, if I replace my valve springs I'm going to have to remove the heads and possibly the jugs and replace those gaskets too? I think I'm biting off more than I can chew....
Your bike should have single wound springs from the factory (S&S) that are compatble with the .585 cam.