Quote: Well, I finally got to spend some time on the car this weekend. I got the Edelbrock calibration kit out, and put the jets back to the stock size, drilled out the pump nozzles to .040, used metering rods to go one step rich, and bumped my timing 5 degrees, The stumble is 95% gone! I think with some more experimentation with the springs and maybe go to the .043 nozzles it will be completely gone. I am now very happy with the way the car runs, and thanks again to all who posted.
did you keep or remove the little weight on top of the check ball that's under the nozzles? I'm fine tuning my 600 on my 318, and removing the weight took away about 80% of the stumble, so I think I'm going to open up the nozzles a bit...just wondering if I should put the weight back in.
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
