Quote:
Originally Posted by SSickLS1  My bro has a MS4/LS6 heads,FAST 90 setup on a M6 dyno tuned at TSP w/dumped duals - 448-432
450's alot on a LS6 IM/P&P stock TB |
It all depends what rear end both cars are running too. I'm assuming this OP's car is running a 10 bolt..what's your bro running, 12 bolt or 9" or 8.8 perhaps?