Ok I replaced what I think was the 2.72 disk ring combo. I measured the disk and it wa about 2 3/4 so I assume its the right disk, and the ring for it was slightly wider, but not much. Ok so I install it and I use the tall silver spring and I was running really lean. It would not let me adjust the idle fp with the set screw. By going all the way up and down with the set screw I got nothing. So you think with the 2.72 disk/ring combo and the dark spring I will be able to adjust the fp to 20psi and not run lean?

BTW is the ring for the 2.72 disk slightly bigger?

I will try this after work today and let you know what I come up with. I will take pics of the disks/rings I am installing too!

Thanks for helping out sike!

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- 05 Subaru STi
- 97 eclipse gs (289whp w/ 276tq)