Got a quick query. How much effect does timing have on oxygen content?
I'm trying to dial in an engine and am using an O2 sensor. It's a small
block Chevy V8 and the sensor reads rich, which is very much what I'd
expected re: rich smell, fouled plugs, atrocious mileage. The engine's
new
and the carb's used but in excellent (visual) condition.
The carb's a 650cfm double pump Holley that's in very new condition
(used
but still in original box) but got it from my machinist who drag races.
The
jets indicate stock but who knows if somebody drilled them. The
distributor's a Mallory Comp 9000 and at this point who knows what the
spark
curve's set to.
So, as I try to dial in the spark curve and fuel, I'm wondering, "Can
the
timing curve significantly change O2? Am I trying to dial in the wrong
system first?"
Best Regards,
Drink


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