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When running about 20 - 25 psi, what is the recommended gap on the spark plugs?

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the more boost pressure the less of a gap you want, otherwise you can have ignition problems, not sure what the recommended gap is at that pressure maybe around .030, if its a problem then get an amplifier, then you wont have to reduce the gap as much

For 18psi i run .035 so for 20-25psi you could start around that and gap them down if you experience spark blow out.But an amplifier will help as stated.

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