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Old 01-14-2003, 05:31 PM
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Post performance out of a q-jet?

Ive never given the qudra jet a chance on any of my cars or trucks, I was thinking tonight about the size of the secondarys it seems to me that the those big ol secondarys would be a good thing as far a performance is consernedthe q jet I have in my back yard is from 1977 and meets california standerds. I was thinking maby changing the medering rods and jets to put out a little more umph for my buck what do you think <img src="graemlins/evil.gif" border="0" alt="[evil]" />

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Old 01-14-2003, 08:58 PM
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The carb you has very lean idle circuits etc. It will respond quite well to changes in the metering rods and also change the metering piston spring to a lighter tension spring if you use much of a cam. Be sure the secondary butterflies are not opening straight up and down (kills) flow somewhat, use long filter holder (more fuel ready close to bowl), drill the tiny holes in the secondary wells about .003 larger. Can also tap carefully on the well tubes and seat then higher in top. If you take time and work carefully it can become a screaming street carb (nobody expect this so you can really fool some people. Expect from 750 to 780 cfm from these carbs. Great mileage on street and performance as well.
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