B-Co Kid
Member
- Joined
- Oct 14, 2010
- Messages
- 235
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87 B-Co; 351w (bored .60); C6 Trans; Holley 570 4bbl
In need of guidance from the carb folks. I have a digital air/fuel ratio meter with the sensor connected at the tailpipe for readings. At WOT, air/fuel is spot on at 12:1, under moderate acceleration, air/fuel is ok at15:1, but at cruise speed, air/fuel ratio is around 18:1 which seems fairly lean to me. Looking at the air/fuel ratio listed for Edelbrock carbs, air/fuel at cruise should be around 15 or 16:1. I can't seem to find air/fuel ratios for different driving scenarios for Holley. Are my numbers ok? If not, how do I adjust cruise air/fuel ratio without messing up other WOT and acceleration values?? Any help is greatly appreciated.
In need of guidance from the carb folks. I have a digital air/fuel ratio meter with the sensor connected at the tailpipe for readings. At WOT, air/fuel is spot on at 12:1, under moderate acceleration, air/fuel is ok at15:1, but at cruise speed, air/fuel ratio is around 18:1 which seems fairly lean to me. Looking at the air/fuel ratio listed for Edelbrock carbs, air/fuel at cruise should be around 15 or 16:1. I can't seem to find air/fuel ratios for different driving scenarios for Holley. Are my numbers ok? If not, how do I adjust cruise air/fuel ratio without messing up other WOT and acceleration values?? Any help is greatly appreciated.