For the love of God, Balla- What is your purpose?
The Cougar is a sub-$20,000 Ford sports coupe. It's not a Nissan Skyline, it's not a Mitsubishi Lancer Evolution, it's not an Escort Cosworth. What are you trying to do, other than brag that you have all this "weight reduction" that would make your pathetic attempts to race on the street all the more dangerous for the rest of the human beings that most obviously inhabit "your" world?
You want faster? Sh*t or get off the pot. Spend the money like the rest of us. Get the Streetflight. Get the Vortech. Get the hybrid. Horsepower costs money- How fast do you wanna go? From your posts not only on this topic but previous and in multiple forums that you expect the acceleration of a MacLaren F1 or Ferrari F50. It will not in any stretch of your otherwise limited imagination make the Cougar into anything but the sub-$20,000 Ford Sports Coupe that you (or your parents) purchased. I keep waiting for the "Type R" stickers to begin to spring up, befouling your sub-par performing sub-$20,000 Ford sports coupe. Did I mention that the Cougar is a sub-$20,000 Ford sports coupe?!
Oh, and by the way- Weight savings on the A/C compressor, condenser, dryer, evaporator, lines, and controls will be about 50-60lbs, about the weight of a half a tank of gas. Do your "racing" with a 1/4 tank of fuel instead of 3/4, and you net the same effect.