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International Automotive Technicians Network
Re: 69 Roadrunner 383 and A/F ratio
Posted to Technical Discussion Forum on 4/4/2009

Hi Scott,

A '69 383 came with a single point distributor and no vacuum advance. Not to say that vacuum advance wouldn't work, but you'd have to tune it. I also think you'll need to jet it richer, Holley 650 would be nice. Start with 70 main jets primary and ... Login to read more.