Yes, I have seen that even Quadzilla has a high idle switch that can reduce the timing to help with cold start and fuel economy.
I have seen that once you start adding more timing, it makes it harder to start when it's cold.
I didn't know that it would cause it to lope or if something was beginning to go bad. I will see about getting it and trying it out.
As for the block heater sadly it does not work I will be replacing it eventually.
Also it mainly did it while my grid heater was also not working now that I changed the relay and it's back up I notice it doesn't lope as much or I guess as hard?
So hopefully, it's just the timing in the cold weather causing it as I haven't noticed any leaks or smell of any sort, and cross-over tubes are on tight and injector hold downs.
If anything, I've noticed a significant increase in fuel mileage and have squeezed almost 300 miles on only 70 dollars I put in.
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