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View Full Version : Edelbrock Carb specialists please !



HzEmall
09-13-2007, 07:38 PM
I have a Buick V6 231 3.8l motor in my car. It had a computer assisted carb set up on it. When I bought the car I ripped it all off and went with a Edelbrock intake and 1406 carb (600cfm), I replaced the distributor with a none computerized HEI distributor and other then that it's all stock.

The car has always run really rich (duh) and about ever 6 months I would remove the plugs and things would be good.

I had never intended for this motor to stay in this long so I never assumed I would have these issues.

When I bought the carb, it was the smallest one Edelbrock had and some of the other ones that were a little smaller were out of my budget range.

Now, the help I need is understanding and figuring out which Metering rod, jet and step up springs to allow it to run the leanest mixture so the car will run right.

The carb came with a .098" primary jet, .075"x0.47 metering rod, and a yellow 4" step up spring

Hope that helps

Thanks for the help...........

Analog-kid
09-14-2007, 07:02 AM
You may want to check the floats first. A lot of the Eddy 600s were shipped with the floats set wrong. It's a common problem and causes them to run rich. The specs should be in the owners manual or you could get them from their website.

MonzaRacer
09-19-2007, 08:28 PM
Try using the lightest spring they have in the kit and maybe step up the the next largest metering rod or a step down in the jet
your probably not getting enough vacuum to draw the power piston down.
Also make sure the power pistons arent sticking as they can sometimes hang till they move a few hundered times.
My trick was to get a brass gunn cleaning brush and a slow drill and give the bores a quick turn , takes the flash right out.
Good lUck
Lee