Yeah mate, I have had one run with a VE SS about 2 months back. Three sets of lights, and three sets of lights he was left scratching his head haha. In his defence, I am running 274rwkws. Speaking of GTS's and 307's, I also JUST had the opportunity to have a run with one on my private driveway on weekend. 274rwkws really does give you a huge advantage over the 6.0L LS2 engine (in stock trim anyway). Poor guy didn't even look at me when he went past later on haha I guess it's not really a fair fight, but seeing as you asked.... Oh yeah, by the way, Simon from Xtreme did my tune also. You wont go wrong with Simon's workmanship nor quality of tunes. A lot of guys here in Perth (and even some over east) will vouch for him.