1980 351 DEQ results

35

Asked by Feb 10, 2011 at 12:40 AM about the 1980 Ford F-250

Question type: Car Customization

351 w/ a newly rebuilt Holley 500. DEQ says HC well under spec after run-up. CO still a bit high. Should I just keep dialing in the a/f screws 'til she passes?

1 Answer

holley is the hardest carb to get adj right,every thing on it has to be in spect at same time,so just dialing the a/f screws will do no good.

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