[Tommy]

Jon,
Often, the key to getting the best answer is to ask the right question. You asked, "Which is a better way to get more hp....a bigger cam or different mufflers ...." I'm not certain that is the question you really want answered. Perhaps the question should have been, "What is the most cost effective way to make my car feel more powerful in street driving without giving up much comfort or drivability?" The answers to those two questions would be very different. For example, opening the exhaust would likely be the best answer to the first question if you were planning to use the car only on the track, but it wouldn't fare well as an answer to the second question. Perhaps you can refine your question and expand on why you are asking. I think that will get you better answers.