Quote:
Originally Posted by Scarebird
My 440 runs quite well except for two issues: horrifying mileage and a misfire under light acceleration. They may be intertwined.
The 440 is a KRE 85cc headed 400 with 4" stroke and 0.065 overbore.
Mild roller cam with Edelbrock ProFlow 4 fuel injection. I suspect electrical gremlins, perhaps coil? Engine idles rock steady - though timing varies 2-3 degrees, not sure if this is due to a mediocre timing light or other issue.
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Start with a compression test