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Old 11-20-2007, 11:44 PM
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68gt500 68gt500 is offline
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Join Date: Oct 2001
Location: Linkenheim, BW
Cobra Make, Engine: Sorry "just" a 68 Shelby GT500
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Quote:
Originally Posted by priobe
68gt500,

What are you using for a e-tube?
At the moment I am getting pretty good results with the F7s.

I did try out the F16s (I could not get any F14s) in the very beginning, with the 40mm venturis before doing the 3rd transition mod but didnīt get good results, so I went back to the F7s. But as I said, it was the beginning of the learning curve - I should give the F16s another try in the spring.

My problems - and the solution I found were:

Driveability problems (huge flat spots): were eliminated with the 3rd progression hole.

Deceleration popping: Eliminated by synchronising the carbs and opening the Idle screws to 3/4 to 1 turn.

Mileage: Improved most by reducing the idle jet (65) and idle holder (110)

Top End: Vastly improved by the 40mm venturis and leaning the main
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68 GT 500
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