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  1. PsyOps

    NE1 using K-Motion K-850 valve springs?

    Digging around the back of the shop & I found a new set of K-Motion K-850 dual valve springs. I'm thinking about using them with a MP aluminum Hemi head & 238/249 @ 050, 520/511 lift SFT cam. According to the catalog, K-850s are 135# @ 1.900 installed & 419# @ 1.250 open. Anyone have real...
  3. PsyOps

    Help with MP 426H cam specs

    Does anyone have the .050 duration numbers and LSAs for hyd roller cams P5155620 & P5155621? Everyone has the advertised duration & lift specs but I'm trying to compare apples to apples with a few other cams. A link would be awesome but any assistance would be greatly appreciated. Thanks.
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