Finnegan's Fabrications - Pondering Air/Fuel RatiosLately I've been driving my wifeâ??s '69 El Camino while studying a FAST wideband O2 meter. The 383 doesnâ??t run quite right and the meter has been telling me part of the reason why: it idles at an 11.0:1 air/fuel ratio and has a slight bog because it goes dead lean at 16.0:1 just off idle.Lately Iâ??ve been driving my wifeâ??s â??69 El Camino while studying a FAST wideband O2 meter. The 383 doesnâ??t run quite right and the meter has been telling me part of the reason why: it idles at an 11.0:1 air/fuel ratio and has a slight bog because ... Read More