Intake for LS engine

[gui67]

I have put the new LS engine in my 67 camaro engine bay to design the motor mounts adapters.
I also measured the distance between the engine and the hood. (standard hood) I have 26cm, a bit more then 10". (the original truck intake have enough room, I still have 2 or 3 cm above).
I am looking to use a 90mm intake instead of the 76mm I got with the engine. I see 3 possibilities in my budget:
-GM 90mm from a trailblazer SS
-Edelbrock Pro-flo
-Edelbrock Victor Jr + low elbow (3848)
-Edelbrock Super Victor + ultra low elbow (3847)

The heads are cathedral ports (706), the engine will be turbocharged. The trailblazer one seems to be the most complicated to get and to adapt. (fuel rail...) Edelbrock should be easier but a little bit more expensive. (but still way cheaper then FAST manifolds).

Do the Victor intake flow as good with an elbow then with a 4barrel TB? I already had a Proflo on my 383 genI and I was very happy with it.

What do you think I should get?

[neki67]

Gui,

did you post the same question on LS1Tech.com? Wealth of information and knowledge over there!

[69cutlassrkt]

I would save for the fast lsxrt if it were me. http://www.gmhightechperformance.com/tech/lsx_engine/1102gmhtp_fast_lsxrt_intake_manifold_upgrade/viewall.html

[gui67]

I have asked the question on LS1tech too, René.

It seems the Proflo is the best solution for my case.
I wish I had enough budget for the LSXRT, but I cannot afford a $1000 intake, even if it is better then the others. With the turbo, I don't think I need this intake, I can just increase the boost to fill the cylinders a bit more.

[Moter]

Get a used Ls6 or even Ls1 intake..clean it up and paint it . Both work really well with boosted applications. My 5.3 with 72mm turbo and ls1 intake makes 505 at the wheels.

[lickitysplit]

Is this an LS1 or one of the 6.0 varients? That will help make a choice. The LS6 intake is known for about 10-15 more HP over the LS1 intake and both use the 76mm opening. The LS2 and LS3 intake use the 90mm opening.