It's not "flow ratings" that guys are switching to the LS6 as much as it is plenum volume. That's the big difference between the 2.

 

Damn Stew, hopefully your next few times out will show a bit more improvement.

 

From what I've read here through the years, the LS6 seems to be better above 6k...

 

well i ran the truck intake up to 6900 rpm and the ls6 up to 6900 and didnt see any difference.

but the truck falls off at 5500 right

 

May only be good to 5500 to some per say,but it sure wound to 6900 fine on yours

 

man i need to get mine on a dyno and see where i need to be shifting!!!! im only at 6375...lol

 

same 60'?

 

yep same 60

 

I think if you retuned it for injectors only then your just letting the setup failper your choice.
Let him retune it for the intake not the injectors and you might see a differance.
You don't swap cams and only change fuel......just my .02

 

i think you need more track, try the 1/4...