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how to lean out air fuel ratio at part throttle

Started by Ryan, December 03, 2009, 01:21:12 AM

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Ryan

Hey,

so doing some tuning today on the 493.

Idle is good at 14.6:1
WOT is very close 12.5 - 13:1
however my part throttle is too rich, about 12 - 12.5:1. I need to lean it out but am not exactly sure what to change. If I understand correctly part throttle should run off of the idle transfer slots to some degree, so do I change the idle air bleeds to lean out the part throttle mix? FYI its a holly 950 HP

Thanks
69 charger r/t Triple Black
   572 HEMI, Passion 5 speed, 4.10 Dana under construction

2014 viper TA