Is that a single exhaust under the car. Looks like a 2" pipe that will definatly hold you back. Your probably expecting more than your going to get without a good performance set up. For starters put a decent intake on it and a good 650 holley or better headers and true duels. A good Msd box and at least a curve kit in your stock distributor, run it about 34 degrees advanced on the timing, get rid of anything that restricts the motor from running all out. Your still not going to scare yourself but you will never get going forward until you reach back in your wallet at least thats how I have always done it. Good luck!!!!