03-09-2009, 07:36 AM
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CC Member
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Join Date: Mar 2004
Location: miami,
FL
Cobra Make, Engine: E-M Cobra Ford FE 427 w/ Webers 48 IDA
Posts: 1,383
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Not Ranked
ok,
I would stay with the 37 mm choke for Now.
1. order 2 more 60 idle jets
2. try the 120 holders ( more than likely you will have to solder them up and reduce the size)
3. If the 149 are truely custom, I would open them up to 155, just to get an idea.
4. Use the F2 tubes, then get or modify you air corrector so they are all 175 or purchase 200.
5. Concentrate on your idle circuit with the LM 1. Dont worry about power or higher RPM work with it until 3000 - 3500 RPM and get it right
6. You did not mention the by pass valve at the bottom of the bowl. What are they ?
7. Make sure your float is correct. This is what I do, get yourself a caliper and measure the highest point of the tang to the float bridge and work with it so .210. If you feel the main should com in a little earlier then decrease the size to .200 with max of .187
After you get your idle driving good to 3500 you can then work with the mains and air corrector.
Again this is how I did it and it works for me.
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