02-02-2010, 10:13 PM
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CC Member
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Join Date: Feb 2010
Cobra Make, Engine:
Posts: 1
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FE - Weber Help
Webers are new for me so definitely need a little help. I have a problem that we are having touble diagnosing. It may be carbs and it may not. Here goes, the engine is a 410 with Edelbrock heads. Ignition is MSD 6a with MSD mechanical advance dizzy. Carbs are 4 48 IDA's. Current set up is:
165 mains
65 idles
120 holders
210 collectors
55 bypasses
f7 tubes
37mm chokes
third prog hole drilled
My present problem is more significant than tuning. The car is running on only 5 clylinders at idle when the timing is set at a normal advance(15-20btdc). Idle mixture screws have no impact at all on three cylinders. However, if you reated the timing to around tdc the remaining cylinders will pick up, but as you would expect the car runs too poorly to even work with. One question I have is, are there passages in the IDA's on the idle circuit that are hard to clean? Could that be the problem? Any help would be terrific.
Thanks.
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