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Original Message
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| RE: Question about 2x4 holley 450's linkage |
| By John - 05/15/2004 1:07:07 PM; IP 142.177.103.85 |
| Not sure what differeance the carbs are externally, but if they are the same, then yes, buy the 427 linkage. The linkage needs to be adjusted so the second carb comes on after the first carb gets to about 1/3 open throttle. Then the second carb advances at a faster rate so that both wind up fully open together. So, you may need to modify the second carb bellcrank as the linkage pin is in the wrong spot on carbs designed for single operation. Also, a air balance tube must be added. Instead of getting new vacumn covers, you can drill and tap each existing cover for a grease fitting. Use the 90 degree ones and remove the balls and springs. Tighten and adjust till they point towards each other for a tidy vacumn hose installation. |
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