well im pretty happy with my low and mid range power its the upper end that i want to start doing some work too, actually i guess the mid range could use alittle help there too, but my 91 ls seriously lacks top end, i can hang with alot more cars from low to mid range but they take me in high range and im tired of it damn it!!!..

ok so 4-2-1 header would give me a nice bump in mid range ? and there isnt that much of a difference in the upper range for a 4-1?