Judson .no power

[AirCooledClassics]

Last year at Bonnieville around my Judson supercharger on my stone stock engine. The carburetor was the jettted as recommended. It idle fine sounded great but produced no boost. The Judson had new vanes and bearings, belt was good. And yet I lost 5 mph. I ran a Full throttle . I tried a carb change stock with main jet change . Same results . I’m going to try to trouble shoot the boost problem . I would appreciate any tips before a tear down .its sad to hear this might be the last bonneville
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2010 Bonneville record holder Type 2, 36hp
NHRA Divisional Sports Compact Champion
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Could be a leak some where in the intake or could be the heads " valves leaking " loss of compression, it could be just a worn tired engine ...if the judson looks good like you said your problem is the engine ....