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A stock 302 pumps out plenty of power to get these relatively lightweight Broncos moving, but the engine in this particular Bronco was pretty tired. Recognizing the importance of not messing with a good thing, Chris Holley rebuilt the motor using stock parts instead of spending a wad of cash on aftermarket goodies. The only aftermarket items he chose to add were headers, which he connected to a dual exhaust system. Chris also installed a new 23-gallon gas tank to increase the amount of time he can ’wheel before he has to head back to town for a fill-up.