Kyle F. is right ,stock for stock with the same driver running both the LS1 and the new Mustang , the LS1 would be faster !
SS traps at 107-110 stock , there is no Mustang trapping anywhere close to that !
MM&FF November 2001 tested a SS Camaro and ran a best 12.96 at 107.43 , and 13.06 at 108.71 , 13.08 at 107.67 ,100%"STOCK" price of this beast 29g`s ! they also said they ran a LS1 a few years back and ran 12.89 at 108 !
This is with Evan Smith at the wheel ! alittle above the avg. driver !