One note on the APT adjustment method Kenth recommended. This method cannot be used on carbs that have Primary Pullover Enrichment. These carbs are identified by the two extra tubes in the air horn. When you start closing the choke on that style of carb you will activate that circuit, throwing off the the RPM change in relation to your APT adjustment. HTH
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10.10 @ 131 MPH in the 1/4
Hoping to get it back together some year.
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