Seeing that you have a 1977 Cutlass, I'd be happy that the body is still in one piece and that it runs. ;f
The first two things you tinker with are exhaust and intake. Another good bang for the buck is a gear change, it won't produce more power, but it will move out much quicker when you hit the loud pedal.
"The reason I am not a liberal is because I am not as confident about my guesswork" -Dennis Miller
Artificial intelligence is no match for natural stupidity.