General Category > Quadrajet Carb Talk and Tips

What do I have here?

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73 Z28:
I recently picked up a dualjet at a swapmeet and as I was disassembling it, I noticed some unusual features.
In the baseplate between the throttle plates was a small cam lobe on the throttle shaft. This actuated a pin under the power piston making it work mechanically as the throttle was applied. The carb also had bushed main bleeds and a pullover enrichment system. Finally the primary metering rods were stamped 55P. I've had a couple of dualjets apart before but none were setup like this. What have I got here? Oddball application? Factory racing dualjet?  etc.?

Thanks for any answers
Paul

Cliff Ruggles:
I've seen a few Q-jets set-up in a similiar manner.  They are somewhat rare, pretty sure they were used on late 1970's Cadillac engines, but there could have been other applications that used that set-up.....Cliff

73 Z28:
Thanks for the info Cliff.  Thats interesting that some q-jets were made with this system too.

Paul

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