fctry286

So I have been doing some research and I am trying to see if putting a different intake manifold on my truck is worth it. I have spent the past 4 hours searching about this.

-I would like the Fast lsxrt but lets face it, way to much.
-Holley high ram maybe? not enough info on if its worth it.
-Then the ED high ram?

I am in the process of doing a cam swap right now. I already have Long Tube headers, Tune, and CAI. The truck is a 2011 sierra 5.3l LC9 cathedral ports.

I am kinda of leaning towards the Holley High Ram, but just could not get enough info on whether or not its a good choice.

I am also trying to find out if i can use my stock truck injectors with this? I know I have to use the different fuel rails.

Any of you guys have a suggestion?

garygnu

what cam did you install ?tell us alot more about your truck .a ls truck intake flows pretty good up to 5500rpm.you can find a used BBK intake for $300 ,flows a little better then a ls6 intake .

fctry286

Cam is a Vinci trucker cam.

99Bluz28

iTrader: (35)

If you spend most of your time below 5k the stick with the truck intake manifold. You can also have it ported, which it will nicely benefit from.
http://peakspeedshop.com/Zen_Cart/in...705b5bd78d9c38

fctry286

Is my truck manifold useful to any one else. Would any one buy it?

99Bluz28

iTrader: (35)

IMO, sounds like it's still useful for you.
The FAST LSXRT intake manifold is the only choice that won't loose any lower rpm HP/TQ compared to your truck intake manifold. That why I recommended just sticking with the stock intake, and maybe having it ported.

fctry286

Oh ok. That's what I am looking for. lol. Just some positive feedback. Porting that manifold is still like 425$ that's crazy.

99Bluz28

iTrader: (35)

They do also offer basic porting which is $250, but whether you port it or not I'd stick with the truck intake manifold.

fctry286

Ok. Cool. Sounds good. Thanks.