carb tune

  1. E

    Rochester Carb tune ; Which is best method?

    Hey everyone, I’ve got access (finally) to my mixture screws on my Rochester quadrajet and I’m wondering what’s the best method of tuning the old gal. On YouTube, I can see the vacuum method but I’ve been advised to do an rpm method? I have the supplies to do both. Truck is an 85 350...

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