Thread: Stumble off idle -
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Old 08-25-2012, 07:02 AM
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Grubby Grubby is offline
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Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838
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Brent,

I will call you next week and discuss.

Patrick,

I was a driveability engineer in the 90s with GMC Truck. I understand difference between a 750 and 850. My theory is the idle circuit is slightly lean and it can't keep up during the transition to main metering. Further, it is likely that max HP is being limited by the smaller carb. The HP is really a secondary issue since I don't race it.

John
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