11-20-2009, 01:57 PM
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CC Member / Sponsor
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Join Date: Jan 2002
Location: Provo,
UT
Cobra Make, Engine: HiTech Legends GT500
Posts: 1,359
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Not Ranked
Quote:
Originally Posted by cdnus
Tom,
Perhaps when you have a little time, could you please post more info on how to alter with expected results the transition circuit.
A few photos would be greatly appreciated also, for the carb challenged. 
Craig |
Sorry to have taken so long to post the pic.
In this picture I have put some paper clips pointing to where the idle restriction is. Please note: that Holley only uses one or the other location as a restriction, not both. Typically there is a brass slug that has a calibrated hole. This restriction controls your idle/transition circuit. You will need a number drill set and a pin vise. Measure the diameter of the hole before you start so you can go back...
http://www.mcmaster.com/#metalworkin...d-rods/=4l7tlr
drilling the jet bigger makes the circuit richer. Go in small steps...
Please note: that I only put pointers on one side of the block. The right hand side has the same restrictions.
As a side note: I have never seen this circuit too lean from Holley...
Last edited by Tom Kirkham; 11-20-2009 at 02:26 PM..
Reason: clarity, grammer
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