I am looking at upgrading my GT6131 turbo. I have added a few mods since first installing. Fresh motor and tranny with a 3200 stall Pats 10" converter, Full Throttles XR 1 roller cam kit along with the usual, 3" down pipe, 2 1/2" duals, Precision stock location IC, ported steel heads. I drive this car on the street a lot so street manners are a biggy. I like the GT6131, but I am wondering what else I can take advantage of now with the latest upgrades. I also want to get a ball bearing turbo this time.