What type of tuning?
well my dyno numbers before fuel and on revo tuning 170 I dynoed at 465... 480 with water meth. Since then I have loaded TNT tuning and the 150 pump... Why would you think i am going to blow up my truck by running water meth? I have ran it on two other trucks for over 150K and have had no problems yet? Also why would 550 be out of reach if that guys brother dynoed at 554 on tnt 5 with a turbo and stock cp3....
My room mate made 579hp in his 05 a while back with a SPS 62, BD CL, water meth, Stock cp3 with a lift pump, and stock injectors. 550 is very doable.
Big shot of meth? Load dyno?