Quote:
Originally Posted by Murlo26
They are duals, I needed them though to handle my lift and not many other people have shown any issues with them. But not a lot of people DD with them and get to 20k miles +.
I think Scheides could've used the Kelford springs as they were designed for his cams but the supertechs have proven themselves for power anyway.
GSC also has some now for the X, not sure on the ratings though, I'd guess good enough for 8500rpms+ and their GSC s2's.
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GSC beehives I've always thought were awesome and what I'd buy if I was going all out. Again they are single springs so I think of them being gentler than duals. But they also seem to have extremely light titanium retainers (lighter than most of the competition) which also helps significantly. So you basically get dual spring performance out of a single spring setup.
I can't speak on the Evo X ones they make though, only just in general.