6150 rpm and spinning.
Nice haha. Can't tell you how many rear ends and transfer case input shafts, and front ends I have broke. So what kind of motor build up? Like all out race motor, or mild build? I'm surprised your even running an automatic in the first place. I miss the days when every thing had the option for a standard.
Mild enough, 400 at the wheels would be nice, though from the 318 I've got that might end up being a stretch, at least a stretch to stay within CA legality. Honestly I'm keeping my ear to the ground hoping I can find a wrecked RT or SRT Charger or Challenger since you can get the engines from them for a song from most yards. As for the automatic tranny, wasn't my choice. The 318 Grand Cherokees only came with an auto so it was all I could get, and boy oh boy do I hate that fucking transmission... Thankfully, as mentioned before the NV3500 is a dead easy swap. Though if I end up getting one of the newer Hemi engines, I'll have to pair it with the newer manual tranny and will be stuck with 2wheel, but eh, for that kind of off road I want to do that will work well enough.