Not knowing if you're planing any other head work to improve air flow. and Only shaving it .060 off it You have gained about 6cc in compression area. ball park it's -2cc per .010 off the head. With the Rv cam and headers ,intake It could be a safe ballpark guess it should be in the 200 hp range give or take some hp. but around that.?The desk top dyno is not very good for or L6 motors. But hope this helps anyway.}[oooooo]
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NovaMan/Twisted6/Larry