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Re: Truck running poorly under load, need help.
Alright, I let the truck warm up then I disconnected the vacuum advance and took another reading at low idle. Still showing 9 degrees before TDC. Seemed odd to me that there was no change, but we'll work with it. Going to a car show tomorrow, so have to get the Camaro cleaned up quick before I can dig in to the truck, but I'll keep you all posted here and take a picture of the code.
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