Well went and dyno'd truck this weekend and found out what my stumble is. Motor running out of fuel around 4800 rpm. The meth is helping as I got it turned way up but not enough and sure it going equally to all cyclinders.
Now for the question I know they rate these pumps for ( I think) 500 n/a hp, but I am making 427 rwhp now with just stock pump. Will the 255lph pump be enough to supply the engine and the 60lb injectors?
Troy