Traction is really limiting the Gen4 as the best time ever run stock (stock tires )is Jamies (Furmans )11.0 at near 130.Smith( not pushing mine that hard) ran 11.3 at 129.8.Both of the above drivers felt in cold weather(above runs conducted in 75 degree heat ) if the track was prepped the car will go 10s.The trap speed difference between the Gen 4 and Gen 3 really shows the power difference.A Gen 3 in 75 degree weather MIGHT trap 121 while a Gen 4 traps almost 130 mph.?????....much more GenIII have broken into the 11's then GenIV's in the 10's..