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Mpg


GKM007

Well-Known Member
Joined
Jun 24, 2014
Messages
107
City
Auburn, WA
Vehicle Year
1984
Transmission
Automatic
Okay now that my Duraspark is complete and working well, I have two questions?

1. What do I do with all the extra plugs that are left over in the engine bay? Do I just wire tie that together and let them hang or cut them and weather proof?

2. My MPG is not great. I did the math on the last tank and I am doing 12.5mpg vs the 17.4mpg I was doing before the swap. FYI nothing has changed except the duraspark also done wires, plugs, air filter. I've read that the mileage should drop a little from the factory feedback, but I've dropped 5mpg, seems excessive.

My guess is that I need to dial in my carb a little more? I currently have the screws out 3.5 turns, and it runs good, does not smell gassy. My guess is that I need to lean it out a little. Also getting rid of the cats should help to I imagine?
 

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