I got a 84 chvy short box 4x4 with 33" tires on it. My engine is a 350 with 265hp. i have a three speed auto tranny. My truck runs wild at 2500-5000 rpm. But to get off the line takes a while. I was wondering what the first place I should start? (New Tranny, Rear-end, or More HP!!!!!) I like the last one but I know its not all about the houses. I have header and exhaust, 2 1/2" all the way back. Where should I start?