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post #1 of 3 (permalink) Old 02-16-2017, 04:05 PM Thread Starter
 
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Total timing?

Sorry , rookie question here...

How does one go about getting the total timing? I've been told my 68 Firebird should be running around 36 total timing. It is a 428, HEI distrubutor. #48 heads.. Holley double pumper. Unfortunately, I don't know the cam size, as I bought the car already restored....

From what I understand, you do the initial timing at idle. Then what? check timing at 3,000 rpm? and then add the two together? Any help would be great guys, thanks.....
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post #2 of 3 (permalink) Old 02-16-2017, 04:36 PM
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Set your timing light @ 36 shine on balancer hub and rev until advance is "all in" then set timing to zero on the hub.
It helps to have someone hold the throttle @ all in while you do the adjustment.
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post #3 of 3 (permalink) Old 02-16-2017, 09:23 PM
 
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If you don't have a dial-back timing light, your balancer(which many insist be called a damper) will have to be marked or labeled in some way, to at least 36 degrees, so that you can use a conventional timing light, to check the total timing.

ATI, Fluidampr and TCI Clear Up Damper Confusion - EngineLabs

Here's what a guy posted a few years back, on this site.

"...You don't need a timing tape. Simply do an accurate TDC verificaton to determine the "0" line on the balancer and then use a dial-back timing light for all your timing work. As a short-cut, you can determine/verify the "0" mark with a good TDC verification and then simply measure the circumference of the balancer and divide by 10 to put a line at the 36-degree mark - this is all you'll need to work your timing issues since your timing tab will allow you to see and work within +/- 4 degrees of the 36-degree mark with ease..."

Last edited by bigD; 02-16-2017 at 09:37 PM.
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