Hey I have an '86 Mustang LX Conv. and I just got it about 3 weeks ago. I dont know too much about cars, but the 3.8L engine guzzles gas like water. It has 120 hp and feels like it needs more "get up and go". Would it be a good idea to put a cold air intake on the engine or would it mess up the rest of the engine, and would need an overhaul to get it to work without kinks.