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#15 |
Senior Member
Join Date: Dec 2001
Location: Elysburg, Pa
Posts: 732
Likes: 357
Liked 324 Times in 120 Posts
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The piston is chasing the exhaust as it's closing, if it's a little tardy it gets smacked. The intake is chasing the piston as it's heading down, if the valvetrain is tight you can run .010" on the intake and it'll never hit.
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