Quote:
Originally Posted by George Mirza
You can run the AFB/Edelbrock perform carb 2 step rod and jet with the FLAT cover in an AVS. But if you use the AVS 3 step cover and 2 step rod and jet it won't run right. The AVS uses a taller jet, longer 3 step rod and the cover with the bump in it. The secondary jets are all the same. The last #'s on the jets are simply the hole size in thousands. If it ends in 95 it's .095 diameter hole in the jet.
I would think it would idle ok unless the primarys are open enough to pull fuel through the primary metering circuit, which may be the case in a low vacuum situation. First check the throttle shafts for play and a possible air leak. If they are ok you may have to drill a 3/32 hole in each primary throttle blade to give it a little more air flow. If it seems better but still dies out make the holes a bit bigger.
I'm sure the guys that know these carbs could tell you which air bleed to open up to pull more fuel/air through the idle circuit.
The AVS is very simple but can be tricky, when right they run very well.
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So to start off with i have the flat covers? i have a Edelbrock carb i removed the rods from it, in witch it had flat covers as well, the car seemed to idle better, it still has a surging idle between 1100-1700 its deffinately in the idle circettry, what a pain...befor it acted like it was running out of fuel and would die, would have to feather the pedal to keep it running i think im past that phase now. just fine tuning i guess...thanks for the info.