05-09-2005, 06:37 AM
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CC Member
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Join Date: Dec 2002
Location: Hockley,
TX
Cobra Make, Engine: Power Performance Body, Contemporary chassis, 427 CO, Big I/O toploader, AMP Billet rear, Trigo 6 pin
Posts: 51
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Not Ranked
I have two 1850-1 and feel that I have just gotten a handle on them.
1. Main jets - 60.
2. PV - 6.5 for a Comp Cams 282S have about 11"/hg
3. Curb idle screws at about 1/2 to 5/8 turn.
4. Vacuum secondaries are tied together
Idles at about 850 or so and gets about 14mpg without hesitation or black smoke at idle. The PV may be a little low as the pedal travel is a bit more than I would like to get a small increase in speed on the highway.
The biggest issue to determine is: are the carbs reacting to the adjustments. Does the curb idle fall when you crank the screws, etc?
Dave
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