01-13-2010, 01:56 AM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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First of all an engine with a roller cam will be able to use a smaller fuel jet in the idle system because it will create a stronger depression signal in the manifold due to faster valve action. Go to a 60 fuel jet and 100 air holder and reduce the idle mixture screws to 3/4 turn open (max 7/8). After Idle system is resolved Then reduce the Fuel & Air Correctors on the main system to approx 160-165 fuel with 210 or maybe 215 air corrector. Leave the Emulsion tubes as they are F16's. Keep an eye on your plugs. If it spits through the carbs off of idle it's lean. Make all adjustments with it thoroughly warmed up.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 01-13-2010 at 01:58 AM..
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