Ignition Advance for 67 289

[herkdriver]

Thanks for the info!!! I should warn you. I'm a beginner. In fact I bought the car so I could mess around with the engine a little.

I don't mean to question your advice, but 12-13 seems a bit high to me. Why would the manual say 6, but you recommend 12-13? I'm trying to learn about all this, so I'm only asking to get more educated.

In addition, you recommend retarding the ignition to 12-13 BTDC, but the timing marks on my car don't go below 6.

Would it help to attach a vacum gauge to the carb, as I adjust the timing, to make sure I'm taking advantage of max. vacum produced, and not loosing anything.

One last question.......should I be setting the timing with the car at idle, or with it operating at a particular RPM? The book doesn't specify, but the timing gun manual recommends operating the car at a higher RPM.