Hey, I thought I would ask before I started modifying my vx. I am about to purchase and fit either a solid cam or a huge hydrologic cam, big valve heads and all the rest into my ls1 it should make about 350rwkw once done. Now will I need to get this engineered? I dont want to find out afterwards once Mr plod pulls me over and rubs it in my face. Any ideas thanks
with a 200kw nitrous kit