If I can get the 1.7 rockers from T&D that's the route I'll go. Right now I have the Indy 1.5s and 1 broken rocken rocker in 200 passes is too much in my opinion. The rear is 4.10 because, as TS3303 said, the 4.30s are just not out there. The motor makes plenty of torque but needs to move a little more air on the top. It's only spinning 6800 on the top end at 150.