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Bored&Stroked · 10-14-2019, 06:50 PM

One thing to note is that it is really common to install a cam with it advanced 2 - 4 degrees. Some cam grinders will put the advance in the profile, while many others will ask that you install it advanced (given an adjustable timing chain, etc). It would not surprise me that given that it is not easy to change the advance on a flathead (and most do not have the skills/tools to do so), that the advance is pre-ground into the profile.

10-14-2019, 06:50 PM	#4
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,067	Re: Cam Degreeing/Checking Important One thing to note is that it is really common to install a cam with it advanced 2 - 4 degrees. Some cam grinders will put the advance in the profile, while many others will ask that you install it advanced (given an adjustable timing chain, etc). It would not surprise me that given that it is not easy to change the advance on a flathead (and most do not have the skills/tools to do so), that the advance is pre-ground into the profile.