Heck with it, I was at the muffler guy today and he seen the 348 and the first thing he said is " those 348s are cool but they suck fuel and love to overheat " I checked the mileage on my short trip and it was getting 5 mpg. Best case I can get it up to 10. I got a 5.3 coming with all accessories, wiring harness ready to go, fuel lines exhaust sections from manifolds, the whole drop in ball of wax for $1100. I want to drive the wheels off this thing.