Mechanical or Vacuum Secondaries?

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1 Post By jhv48

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#12 (permalink)

04-20-2021, 03:35 PM

patrickt

Half-Ass Member

Join Date: Jun 2005

Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum

Posts: 22,025

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Quote:

Originally Posted by Grubby

I changed a 428 stroker from a 750 vac secondary to 850 double pumper and you couldn't tell it was the same car.

The throttle response was way better and overall power seemed to be more.

John

Did you check to see that the secondaries were opening under load properly before you replaced the carb?

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