my 600 has a little .1"x.1"x.25" chunk of metal (the weight) sitting on top of the check valve. I put it back in when I drilled out the nozzles to .040, and I still have a little off idle stumble w/the acc pump set to the inside hole, so I'm going to pull it back out tonight and see if that takes care of it.
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)
