Lots of duration - 255@.050" ,same as our .610 lift billet
Ground on 105-deg lobe separation
Suggested for non-ported heads.
Tech note: Use our FD-110X spring installed at 1.800" (you need
to cut .050" from spring pocket) with our FD-114P pro-retainer which adds
.050" installed height to achieve the 1.800" suggested.