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Old 10-19-2012, 08:49 AM
D111 D111 is offline
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Join Date: Jan 2011
Cobra Make, Engine: 427
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Quote:
Originally Posted by Gaz64 View Post
How much manifold vacuum at idle? 950 then 750?
The best that I can get after tuning the Low idie screws is about 14 to 15 at 950 and about 12 1/2 When it drops down to 750

also replaced both carburetor return springs With Stronger tension.

But those conditions Persist slightly . letting off the gas in gear there is still that slight tugging and when left to idle for a couple of minutes It still drops Up to 200 RPMs.
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