The truck manifold is actually better through most of the power band, it just falls on its face about 5500 rpm. The ls1/Ls2 manifolds aren't all that great at all. Mostly irrelevant on a turbo car like this one though.Which Intake is better?
Is the motor in the car a junk motor?
Car intake is just cleaner looking and fits under the hood better.
I've got a bare 6.0 block in there now with a set of LS1 heads I had on my work bench. Just for mock up purposes. The block isn't "junk" but it's .040 over and that's completely useless to anyone.