could someone please help clear the air on this timing set. I want to set this up straight up with a gs113a cam, ive heard talk that advance is built into the cam or into the gear set.
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could someone please help clear the air on this timing set. I want to set this up straight up with a gs113a cam, ive heard talk that advance is built into the cam or into the gear set.
Quote:
Originally Posted by buick72racer
That's why it is MANDATORY to degree the cam, any cam. That cam has a 113 LSA, so you would need to degree the intake lobe to 109*. That will make it 4* advanced. If you want to put it in straight up, degree the intake lobe to 113* There is no way to know which key way will work for you, hence the degreeing process.
The 113A has 4* of advance ground into it. That means it should be at 109* on the intake when using 0 advance in the gear set. There is enough variance in cam grinds and cam gears that you will not know for sure unless you degree it in as Larry suggested.
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