Jon, the primary side parts for a QJ are pretty much interchangeable with the dual jet carbs I've tinkered with- - - -main jets, metering rods, etc. Having a 4-gas exhaust analyzer and enough knowledge to use it comes in handy, especially when it's combined with a 120 volt AC inverter for real time analysis on a road test. It's also pretty simple to make minor changes in high speed mixture by tinkering with the float level a little.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!