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Old 01-24-2012, 10:00 PM   #13
cppursell
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Join Date: Dec 2008
Location: San Francisco, CA
Posts: 140
Re: Vacuum advance issues

Quote:
Originally Posted by Katrina/10 View Post
With 9.9 compression iron heads you'll probably have to run premium gas or very very little advance. Then you won't have much power.
Yeah, I haven't quite gotten rid of the ping, so I'll try premium gas. I was able to re-hook up my tranny kick-down so that'll help under load.

The truck is running very well now! I feel much more satisfied while driving it that I have it running more efficiently.

Thanks for all your advice.
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