What gains does the fast efi have tuning and performance wise? How much would it cost for a complete setup and could i use my 42# injectors with this setup

 

Uh this is a broad question, kinda like what are the gains to be had going with a carburetor. Someone has to know how to tune it, otherwise what's the point? Removing the 7000-7200rpm limit of the LT1 PCM is nice for all out performance. If you looking for gains on a heads and cam setup you're wasting money.

-Dustin-

 

The fast intake manifold doesn't present a gain over our restrictive one? That's what im wondering. And if you can buy a complete kit.

 

I don't think they make an LTx specific manifold. I would expect you'd see gains similar to other single plane manifolds if you did modify one to fit.

The stock intake is not horribly restrictive....lots of guys make big power with them.