Well I am going to swap to a car manifold, The question is which one? Either the FAST 78mm or the LS6. I really don't know which way to go, I can get the FAST for $650 or the LS6 for $425. I am kinda leaning towards the FAST, if I am going to do it, then go big!

 

If your going big the the 90mm throtle body, so you have "room to grow" But if I had to settle Id take the fast intake 78mm

 

I think LS6 for the cost/hp reason, I saw an unmolested LS6 go over on tech for $250. If you think you might want to go to a 90mm tb later, then the FAST. The FAST is a three piece and the tops are interchangeable.

 

there is no way to go with a 90mm TB, its pretty much out of the question, unless the harness comes true. I think a 90/90 combo might be too much anyway for a 6.0.

 

Well I made a decision, BigTex came through and sold me the FAST 78mm. So its a done deal.

 

 

Are you planning on using your stock 75mm TB? Im interested to see what you gain from the swap. Are you swapping over to the high flow fuel rails and car injectors?

 

I am going to try to use the truck rails and injectors, this way it will be easy. I just got 42lb injectors, so I want to try to use them.
I am pretty sure that the stock truck TB is 78mm to start, Well thats what I was told. Yes I am going to use the stock TB, I am DBW so I don't have a option.

 

Sweet...
So, you'll be using a Spear Tech bracket to move the pulley?

Keep us updated.

 

I plan on using the Speartech, unless it looks like I can make it myself.