Any other mods? Should have bigger fuel pump for anything over 100HP on a Mustang. The bottom end will take it though..that's not a prob. If he could get traction..it would be a mid 12 second car...maybe better. All depends on the other mods. He is probably pushing about 340+ HP at the wheels and WAY over 400 ft lbs torgue. Find out what else he has for mods.