mfg Posted October 25, 2017 Report Posted October 25, 2017 If they were to be used in competition, Studebaker recommended Champion type.....?...... spark plugs for their Avanti/Jet Thrust engines.
studegary Posted October 26, 2017 Report Posted October 26, 2017 Champion J-61Y with a gap of 0.018" - 0.023" to the SIDE of the center electrode.
mfg Posted October 26, 2017 Author Report Posted October 26, 2017 21 hours ago, studegary said: Champion J-61Y with a gap of 0.018" - 0.023" to the SIDE of the center electrode. J-61Y is the CORRECT answer!
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