85 rx7 carb upgrade

WE3RX7 · 03-20-2013, 04:28 PM

As long as the 600 is vac secondaries you can get it to work. Performance is minimal over the 400-450s though and I would shoot for the smaller carb if possible.

You will have to modify the throttle linkage and probably some slight grininding on the lower ear of the holley manifolds (older racing beat manifolds didn't fit perfectly and thats usually what you find for sale when buying used). All in all its not a big deal.

If this is a daily driver, I would NOT run the 600. If you can locate a weber or mikuni 40, I'd run one of those instead.

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03-20-2013, 04:28 PM	#8
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA Posts: 1,812 Rep Power: 19	As long as the 600 is vac secondaries you can get it to work. Performance is minimal over the 400-450s though and I would shoot for the smaller carb if possible. You will have to modify the throttle linkage and probably some slight grininding on the lower ear of the holley manifolds (older racing beat manifolds didn't fit perfectly and thats usually what you find for sale when buying used). All in all its not a big deal. If this is a daily driver, I would NOT run the 600. If you can locate a weber or mikuni 40, I'd run one of those instead.