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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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My experience with the Zeniths is they work great on a stock 2.2 T. After I modified my motor up to a 2.5 I had to give up on the Zeniths.
Jets, emulsion tubes and venturis are not available. I used weber venturis shimed around with sheet metal which worked. I used Solex jets. The problem I could not overcome was the flat spot in transition from the idle circuits to the mains. The idle circuits in the Zeniths are designed for the small (27.5 mm) venturis and didn't take to the larger ones.
Maybe others have overcome this problem and will chime in.
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Gordon
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'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
Trackrash's Garage :: My Garage
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