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  #1 (permalink)  
Old 07-21-2009, 01:19 PM
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Cobra Make, Engine: E-M Cobra Ford FE 427 w/ Webers 48 IDA
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Rick,

I agree with you. However, I dont recall seeing a chart of Etubes that list from rich to lean in a proper order.

Also, the etubes have a reasonable amount of influence on driveablility. (cough cough) more so than the idle circuit.

My ultimate goal is to have a section (maybe here) that one can follow based on symptoms one is experiencing that they can intelligently purchase or recommend a etube.

These Etubes are expensive and to purchase them and make a mistake surly hurts the pocket.
I think now alot of people are doing the Monkey see Monkey doo mantality and not taking into account altitude, final gearing and so forth.
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Old 08-11-2009, 03:11 PM
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One of my Weber books lists these emulsion tubes versus cylinder capacity:

F11 - 250cc to 325cc
F15 - 275cc to 400cc
F16 - 350cc to 475cc
F2 - 450cc to 575cc
F8 - 550cc to 675cc
F7 - 675cc and above
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