I would go up 2 steps in spring "stiffness", if you know what I mean. I would go 2 sizes smaller on the metering rods.
I will tell you, I twice had to pull 600 eddies off of my Dusters because the plugs were scary white, and neither have headers. I too, could tell they were lean. I now have Holleys on both, and it's a difference in how crisp they are on part throttle, and mph went up with both cars on the ET slip. But I get it, your running the Eddy, so I guess my suggestion is above.
