'70 Dart 392 Project; what direction?

HDK front suspension will be delivered tomorrow, excited to check it out. Machine shop had to order some exhaust valve guides last week and stem seals so hopefully get those back this week as well.

Been doing some thinking in transmission situation. Got an 833 from a ‘70 Duster, hurst shifter with linkage, Z bars, trans tunnel hump, and pedal setup here in the shop. One thing I keep coming up against is my highway driving. We live 25 miles from town on a 65mph highway. I cruise at 70mph every day…. I’m going to want an OD setup. I’ve got an 8 3/4 housing with 3.23 pumpkin.

Been looking at gearvendor setup and running the ratios and it doesn’t make a whole lot of sense with the 4 spd. Couple of gears are only 15mph different at 5500rpm shift point and with a 29” tall tire I’m still cruising at a higher rpm on the highway with the .78 OD ratio.

The TKX with the .72 OD setup is actually very appealing. The shorter 1st gear compliments the 3.23 rear gears in town and still allows cruising around 2200rpm on the highway…

pricing out the flywheel, clutch, hydraulic TOB, rebuild kit, and gearvendor setup I’m darn close to a TKX kit. Especially if I sell the 833 setup in here and just keep my pedal assembly. Going to be chopping up the floorboard anyways for the manual swap, and both ShiftSST and American powertrain kits come with a new trans tunnel.

Anybody got any advice? The SST kit without driveline is $5400. The American PT kit is $6300 with driveline. Thanks in advance.

Mike