Budget racers quickest stock piston and head motors

Kind of a vague question. What all are you trying to do here - race the car without doing anything to the stock configuration and see how fast it will go?

There are guys in the the 10s with stock pitons and heads but going that fast obviously depends on the rest of the combo. There was one guy on Moparts a while back who went in the 9s with some 'stock' parts in his 340.

Is that 14.78 ET with a stock cam? Do you have headers? What about the carb, intake or ignition? Any chassis modifications? Slicks or street tires?