I wouldn't run the GV behind the OD box again with a hi-revver. My 367 was not happy with the wide ratios in that box, and splitting every gear,all the time, was a pain. I would run it behind a sbm with a very short period cam tho; something that had more torque below 3000. Like maybe a 360 with from 200 to 218* @050 The 223* was already iffy. But the 230* was horrible. The splits in that od box are 54% and 60%, so a comfortable 1-2 shift at 2800,drops the Rs to 1512 and 1680, so you gots to have some torque down there, especially when running a 3.23/3.55 gear.I learned that the 230* cam didn't have enough, and ended up with 4.30s. Which made "normal"taking off rather a pain, having to shift, like 3 micro-seconds out. Naw the best city starter gear is between 10/1 and 11/1, not 13.29. This makes a nice comfortable first gear. And if you go for 11/1 with a 62% to 72% split, then second is also comfortable. But 54% is just too far away with bigger cams. I don't like my S to sound like the Mustang boys, who have to hit nearly 4000 at the 1-2shift to keep their under-torqueded hulks moving,lol.
Hence the current combo with splits of 62-73-78-71.5