05-24-2013, 10:02 PM
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#4
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Junior Member
Join Date: May 2010
Posts: 88
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Re: how to tell a 750Qjet from a 800 Qjet
Quote:
Originally Posted by Rob3105
Look through the primary venturi and there is a ring/step on the outside of the bore. The 800 has a narrow ring and the 750 is wider. If you have both sitting side by side it is easier to tell. After you look at enough of them you will be able tell easily. This is the easiest way to tell quickly but you could measure the venturi as it is called out in the NHRA specs as 1.093 for a 750 cfm.
Rob Turkal
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My carb # is 17056502
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