Running Rich Issues -

Speed Density/Carb/SSP section This section is for the Speed Density or Carb vehicles, as well as Special Service Package 'Stangs

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Old 03-27-2012, 09:45 PM   #1
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Join Date: Dec 2007
Location: ALberta
Posts: 630
Default Running Rich Issues

My car is running really rich after a fuel system upgrade

Heres my setup
393 stroker big roller cam
Quickfuel Q750 carb

I added a sumped tank and -8 lines witsh return setup

Before fuel system change i was running 70 & 80 jets

After change it was running really rich fouling the plugs

Changed to 67 & 77 jets still runs rich

is it normal that i would need to jet that much lower?

Out of box settings are 74 & 84
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