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#1
05-01-2018, 06:05 AM
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If those # 17 heads still have the stock valve installed height, no less valve springs then you will not beable to run any Cam like the RA4 that has close to .470" lift.
You don't know what Cam is in there now, but I can tell you from experience that mixing any Cam of more then .450" lift with the stock size pressed in rocker stud is going to bit you in the Ass sooner then later, especially if you try to run poly locks on the stock studs! And add to this list the need for yanking the the stock rocker arm out and drilling + taping for screw in 7/16" studs .
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