General Category > Quadrajet Carb Talk and Tips
quadrajet on RPM Air Gap with adapter
novadude:
I agree that the ZZ4 intake is pretty good, and there is little to be gained per dollar spend to swap to an air-gap. Don't know if you've ever seen this test?
https://www.motortrend.com/how-to/dual-plane-intake-manifold-comparisons/
Mudsport96:
Stock and ported iron intake flow numbers in one picture and rpm air gap flow in the other. While I agree the rpm looks cool, some work with a grinder and you can have a stock appearance intake flow almost to just as good.
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