Originally Posted by Rapinator126
Spray that baby
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Bottles are for babies. Real men get blown. Obviously, my vote is for a supercharger, if you ever decide to use a power adder. And 3.73's are plenty of gear. If you want to continue with the 4x4 theme Ford started with the Mustang suspension, then sure, get 4.10's... might as well put some mud terrain tires on it, too.
The Mustang, particularly the five-oh, isn't going to stomp an LT1 F-body without some serious work. Improve your driving skills. Learn to handle your car. And get the power it already has to the road.
Stiffer lowering springs, good staggered street tires, sway bars set up for neutral steering, and 3.73 rear gears. If you want to go a step further with your suspension, or if your bushings need replaced, get poly bushings all the way around. You don't need camber plates. Any half way competent suspension shop can drill the factory plates to correct the suspension geometry of the 2" lowering springs.
After you get the dyno tune and the rear gears. Just drive your car, a lot. Take it to the track and/or autocross it. Learn it inside and out. Then decide what you need to improve. Adding a bunch of power right off the bat is going to do nothing for you if you can't effectively deliver the torque to the ground. And it doesn't matter how fast your car is if you can't steer it.