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There was a time when dragstrips and road courses across America were bustling with the sounds of screeching bias-ply burnouts and solid-lifter crackling, and lead-infused fuels burned under high compression. The muscle car era was in full swing, and the manufacturers waged war in battles of horsepower and cubic inches.

Photo Gallery: Drag Racing Basics – Feeding Your Need For Speed – Modified Mustangs & Fords Magazine

Photo Gallery: Drag Racing Basics – Feeding Your Need For Speed – Modified Mustangs & Fords Magazine

Whether you’re a seasoned Mustang modifier or are just now enjoying the ownership of your first classic Mustang, you are probably familiar with one of the golden rules of tinkering: For every positive action, there is usually an opposite and equally negative reaction. Take for instance that new camshaft you have been eyeing. While it certainly will give you more horsepower, torque, and parking lot credibility, it won’t do so without costing you a certain amount of driveability or gas mileage. Or, how about a new ring-and-pinion? While a set of 4.10 gears will make getting off the traffic light a blast, the downside is the inevitable loss of gas mileage and the wear and tear of sustaining higher rpm while cruising. Of course, for every rule, there is an exception. In our particular case, we’re talking about automatic transmissions, an essential piece of your driveline that can normally be upgraded without suffering any decrease in performance or enjoyment. In fact, with many new cars coming with six-speed manual and automatic gearboxes, it’s hard to argue with the theory behind adding gears to any retro ride.

Photo Gallery: Overdriven Excitement – Mega Monster AOD Transmission Installation – Modified Mustangs & Fords Magazine

Photo Gallery: Overdriven Excitement – Mega Monster AOD Transmission Installation – Modified Mustangs & Fords Magazine