1 The Tri-State Tornado lasted for 3 1/2 hours, starting down at 1:01pm 3 miles NNW of Ellington, MS and dissipating at 4:30pm 3 miles SW of Petersburg, IN. 2  Average forward speed of this tornado was 62 miles-per-hour with a record setting speed of 73 miles-per-hour at one point.
The side effects of a blown head gasket include oil and coolantmixing, poor performance, and smoking.
Water in the cylinders will blow the head gasket. Any water through the carbs. (not likely on a car, easy on a tractor!) or a head gasket break that allows coolant water to leak from water channels to cylinder. Water is effectively incompressible and the piston on the compression stroke will try to compress it.