Without the truck being on a dyno, its going to be tough to know if it does anything at all...but, it will be done and if it comes out decent at least we can confirm that it can be done for $150 or less and have confirmed someone reliable to do it...

Well if you don't mind a trip to SC, I got a family member who has and does dyno testing. Sure I convince him to get ya a free testing if you got down there.

Sorry to bring this thread back from the dead...

But....

Any results with this mod?
Increase or decrease in gas mileage?
Seat of the pants improvement?

I have my intake manifold with throttle body currently sitting in my trunk.

Is this mod worth doing?
And how much does it cost?

Thanks!

ken you should just go for it since you are doing the cams and headers.

did andrew get back to you with a price?

I didn't bother Andrew with it since it would probably be pretty expensive for him to machine it.

I checked out the website that Spalind used and it's going for around $150-$200. Not bad at all.
So I'll probably do it once I get the truck running since it's a simple swap and I have all of the other items to support it.

Header have a little more priority than this.