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dead spot

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Old 06-22-2002, 07:07 AM
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Car: 89rs (previous 2.8)
Engine: 406
Transmission: 700r4 (for now)
dead spot

Edelbrock 600cfi, performer intake. Just off ldle when cruising, I get a bad miss, a little throttle and it i gone . just seems to be one spot. My FP is set at 6lbs. The car has always ran a little rich, so what ya think?
Old 06-22-2002, 01:41 PM
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my car has the same prob except i have a edelbrock 750 cfm, it is jetted down and has a dead spot off idle and floods realy bad
Old 06-22-2002, 08:40 PM
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Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Try a primary metering rod that has a slightly smaller
cruise step ( about .002/.004") and the same size power step
as what you have in there now. This will enrichen the cruise
calibration slightly while leaving the full throttle calibration alone.

You can buy a edelbrock performer tuning kit specific to your carb.
It has a selection of relevent parts to fine tune your carb.

You can see a list of the different metering rods and
their specs online at www.edelbrock.com
Old 06-23-2002, 07:02 AM
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Car: 89rs (previous 2.8)
Engine: 406
Transmission: 700r4 (for now)
Thanks for the reply....I'll check it out.
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