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Old 05-09-2013, 06:16 PM
John long's Avatar
John long John long is offline
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Quote:
Originally Posted by 1971BB427 View Post
I put them on everything I own! Summit sells them based on balancer diameter for about $3, so hard not to have them. They're such a great aid in tuning!
I can see that. I borrowed a Craftsman timing light that has the dial which allows you to use just use the one timing mark but I kept getting conflicting readings. The concern is the circuitry of the timing light is causing issues. Now I can use just a plain old timing light and not have to wonder.

The guys on the Ford Barn who have spent a lot of time playing with the SBC distributors say 20 degrees of mechanical and 6 degrees of vacuum are ideal for the flathead. I believe this distributor is set very close to the 20 degrees mechanical but I also believe it is giving me 10 or 12 degrees of vacuum advance. It tends to pull well at full throttle but ping under a light pull. I should know what I have for sure in a day or two.

John
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