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Old 05-17-2021, 06:59 PM
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by Grubby View Post
I worked on one Vac Secondary Cobra that the secondaries were not opening on.
A really free flowing air cleaner also reduces the velocity of the air going through the carb thus reducing the venturi vacuum. That's why on a lot of threads guys bitc* that their new expensive free flowing air cleaner makes their car run worse. See the Note at the bottom of the Secondary Throttle Opening Ranges in my post above.
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