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Bruce,
I have run a bunch of carbs on my 356 ci, Brodix headed engine over the years. The best "off the line" power was generated with a 650 DP, so far. I used a new Holley Avenger 670 on the last setup, and it's doing well but doesn't make the power that the double pumper did. It's great at pulling from 2,200 rpm in fifth gear on the freeway at 70 mph. Do you think a 750 vacuum secondary would work better in this application? And, how about the Avenger 770?
Paul
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