Ive got a 94 gt 5 speed i have had my car for a bout a year and its bassicly stock execpt short throw shifter, 3.73s,and flow master mufflers. I have had about a year has around 150k on it. Ive got the bugs worked out as far as i know and im ready to start my build. this is my daily driver so i dont want to git to carried away. What i would like to see is something around the 300rwhp mark. What is the best and most cost effectve to achieve this?