I had very good luck with my EB Mods JS .21 it got easy 10 min pits with fuel to spare using a 2060 pipe in a truggy. Im gona give the .23 a shot this year even though the .21 was defiantly enough for it.
The .21 is great because you can pick it up pre-run in from tko for $215. Its great for those of us who hate the break in process. Another + is that its done right by a reputable source.