Reply to thread

Message: <blockquote data-quote="BigTang" data-source="post: 536987" data-attributes="member: 10950">w/ the proper cam and intake you can make plently of power. you'll probably have to step up your gears a little to make it useful.Lunati and another company lindy(?) rent and sell flycutting tools. You need about .080" clearance on the intake valve and .100" on the exhaust. you can also use a flat cylinder shaped stone in a die grinder to open up the stock valve relief eyebrows(i'm going that route). as long as you don't cut all the way to the edge of the piston and don't go down below the depth of the existing relief's deepest point you will be ok. You can also retard the cam timing a little to help w/ this. A good custom cam company can explain it better. Its not the total lift of the cam that causes PTV contact, its the opening rate of the cam(ramp speed/rate).</blockquote>