Ok, I did my timing advance check. Here are the results. I did change out the weights and springs last year so they are NOT stock anymore.
RPM...........Timing Advance
Idle...........27
1000...........27
1500...........30
2000...........35
2500...........36
3000...........36
A couple of interesting observations. I do not have any trouble starting this car, even when hot even though timing appears to be too advanced at idle. Also, the timing mark would occasionally "jump" out of sight (maybe a misfire?) and the timing light seemed to flash rapidly (crossfire?) at times. This occurred only at idle and 1000 rpm. Any speed above that it seemed to disappear. It would appear to me that I need a slightly heavier spring than what I installed. Any other thoughts?
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1970 Trans Am
1971 Trans Am
1974 Trans Am
1978 Y88 Trans Am W72/auto
1979 10th Anniversary Trans Am
1984 Trans Am
1996 Trans Am WS6
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