Hello all. I'm looking at stacking my current box and was hoping to get some suggestions or words of advice from you guys. From my sig, you'll see I haven't any transmission or fuel delivery mods, so I'm not looking to get too crazy. However, down the road I do expect to upgrade the vb/tc or complete trans. I am considering a timing box, such as the TST module, but am not sure which one (pmrc 55, 75, 95). Because I already have gauges and I'm not really looking for incab adjustability, I'm not considering the R37 or 49. I don't do a whole lot of towing (8000# every other month for short distances) and most of my driving is hwy. Just wanted a little more power to play with from time to time and not be too worried about trashing my trans or other equip. Any suggestions would be appreciated. Thanks in advance.