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During my rebuild I discovered that the range is plus or minus .3mm. So if you are at 1.26mm, then you could go to an advance valve overlap of 1.56mm for slightly more low end torque.
The more important value is that both sides should be exactly the same.
(Edit) I defer to Flat6pac because he has twice as many post as I do and my info is for the newer 964/965.
Thanks,
Mark
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1991 964 Polar Silver Metallic Turbo Coupe
Last edited by lucittm; 10-25-2010 at 05:15 AM..
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