Thanks, for the welcome!
Yep, gotta have boost! "Places to go, things to do, and Porshes to pass" ya know! And I've got the Vette Z-06 and Viper to contend with as well (I used to drive Vettes before I made the switch to Z cars).
The theoretical top end given the current gearing and redline is 208, but I haven't taken her that high (yet). Next time I have a chance to do a high-speed run (sanctioned), I'm going to target 185. Above that, the rules require a full roll cage, which I don't have (yet) -- I do have a 4-point roll bar. The speeds are laser clocked down to a thousandth of an mph. I've found the 350 to be incredibly stable at high speeds, in fact it's ho-hum, boring in a straight line. The good adrenaline rush comes with high-speed curves where a well-setup 350 really shines.
Even though the engine is built to easily handle 25 psi, I've maxed out the available off-the-shelf pulley sizing for the ProCharger (largest drive and smallest driven). So to increase boost, I'll need to do some custom pulley and belt sizing. This is where turbos make it easier to get into the higher boost range -- just change the controller boost limit.