I have a 1985 Suburban that wieghs around 5200lbs and I will be installiing a 8" superlift w/38" TSL. Right now I have a 350 4bolt main engine with a performer intake and a 600holley carb I also have exhaust, that's about it. I was told that this isn't enough power that I need at least a 454 engine, but let me tell you that the gas prices here in Hawaii is outrageous. Can I get enough power out of my 350 to power through sand and mud oh yea this is my everyday user? Let me know.