660 raptor valves
#1
660 raptor valves
I have a 2003 660 that im putting a wiseco high compression piston/rings 11.1. And stage 2 hot cam. My questions are will my hot rods crank handle that and I've heard that the cam comes with double valve springs and it runs the risk of stretching the valves. Is this true? Have any of you done this? And what kind of power increase can i expect. Thanks for any help
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