* Engine modifications: The stock 351 Cleveland or 429 Cobra Jet engine is powerful, but significant modifications (like higher stall torque converter, performance camshaft, and possibly nitrous oxide) would be necessary to generate the massive torque needed to lift the front end. Stock, it's unlikely.
* Driver skill: Even with modifications, a skilled driver is essential to manage the power and control the wheelie. A sudden burst of throttle and clutch manipulation is required, and it takes practice to avoid losing control.
* Weight reduction: Reducing the weight of the car (removing unnecessary items from the interior) would make it easier to achieve a wheelie, but it’s usually not enough on its own.
* Tire conditions: Good traction is vital, but also needs to be a balance; too much grip could make the wheelie harder to initiate, while too little might result in a loss of control.
In short, while theoretically possible with modifications and skilled driving, a stock 1970 Boss Mustang is not built for wheelies and it would be a difficult feat to accomplish. It's much more likely to just do a burnout.
