01-17-2009, 02:43 PM
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CC Member
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Join Date: Jun 2003
Location: Palma de Mallorca, Spain,
ESP
Cobra Make, Engine: Contemporary with 482 KC/SO, TKO600,IRS Jag/AMP, 3.54 Salisbury PL,
Posts: 582
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Not Ranked
my setup right now is 40mm chokes,140 main jet, F15 emultube ( a modified F11 tube it is. I Plugged the lower row of holes with tin solder and drilled 4 new ones between the top two rows of holes), 100 air corrector, 65-70 idle with 100 holder, no 0.00 bypass for pump.
The air screw is at 1 turn out to prevent popping and sneezing.
I ended up removing the bypass for the pump because when stomping on the gas it would bog even with a 0.35 bypass.
The 100 air corrector was needed to prevent leanness at WOT.
I guess that many are running too large main jets and making do with large air correctors. That produces richness all over the band and those black plugs.
The new KC engine is running just fine and with light gray plugs. But there is a hesitation at part throttle at around 3000-4000 rpm which I think is the ignition, because it is missing at that speed.
I have just received a new distributor cap with drilled holes to prevent corrosion inside and I have had to change the distributor gear because it was eaten up by the cam gear.
The car goes like a rocket, but at part gas it hesitates. I have tried everything with the carburetors until I discovered the timing to start getting erratic at above 2500 rpm. So I had to put a new cap, new weights, new gear, new springs (one was broken).
If tomorrow the weather is as good as today I will take the car out and see how it runs and let you know.
Stefan
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Nothing sounds better than a Cobra in a Tunnel !
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