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Does any one know of a valve spring that sets up at 2.00 for p51 heads for a flat tappet cam? Pressure needs to be around 150# on the seat and 380# open at 1.250. These number come from comp cams specific for their cam. But their spring does not set up at 2 inch installed height. The spring I have now is comp 928 which does not have the pressure at 2 inch. These springs came on the heads new out of the box. So im trying to get my valve spring pressure correct,thanks
 

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Does any one know of a valve spring that sets up at 2.00 for p51 heads for a flat tappet cam? Pressure needs to be around 150# on the seat and 380# open at 1.250. These number come from comp cams specific for their cam. But their spring does not set up at 2 inch installed height. The spring I have now is comp 928 which does not have the pressure at 2 inch. These springs came on the heads new out of the box. So im trying to get my valve spring pressure correct,thanks
Use -.050" locks and some shims to make the 928 work.
 
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