Following this. My 526 made 630lbft at 3600. i drive it a bunch, and a lot of hiway driving. i have 3.73's now, and 60 is about 2900 with 275/60's. i'd like to go to 3.23's, so i can at least keep up with traffic. i had no problem spinning my old motor 4,000+ on the hiway, but not with this engine. I also have a 2600 Ultimate converter.
526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
