[QUOTE=JLMounce;5585765]Right. If lobe lift is a function of decreasing the base circle, what what lobe lifts do you start running into this issue?
The SD Performance OF grind for example is listed at .578/.582 gross lift with 1.5 ratio rockers. It's lobe lift on the exhaust would be .388[/QUOTE]
Which would be enough to be a problem. These cams I'm dealing with now have lobe lifts of .350"-.370".
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Paul Carter
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