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Originally Posted by XfireZ51
UR,
Just to clarify, if you've already done the exhaust and top end, you're saying the heads are worth an additional 50hp? Is that a porting job or does it include bigger valves, chamber work etc.? What's your take on the cam phasing?
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Big valves with stock bore will loose power.
All this tech talk in the For Sale section,goes to show some of us will talk ZR-1 stuff anywhere,we're crazy.
Pete