Engine tuning is not a black art; it just takes time to learn the particulars so you can maximize your power plant's performance. Take the time to read and learn, and you will avoid the mistakes most of us made in learning the ropes.I thought I had it licked 8 years ago, but I’m still learning. We never really stop learning; sometimes, we just get too smart for our own good. Experiment a little with some of the tips, and you’ll find there’s more power to be made with less effort than you thought. Some of the modifications involve a bit of risk; just take it slowly, and use your “noodle.” It’s hard to make a mistake you can’t correct.Don't say you have a 9sc car and ton's HP,you are a good tunner.