I have a ls1 40k miles. I also have a set of 2006 243 heads removed from a trailblazer ss. I have trailblazer injectors and injector rail with 2006 gto intake manifold. I also have 2006 trailblazer ss throttle body What kind of benefit will I have adding those parts to my ls1. I also was thinking about putting a mild cam in also, do not know which one yet, ideas welcomed. If not that much of a difference I rather sell and save for another project.

 

There was no 2007 GTO. I assume you mean 05-06?

 

correct 2006 gto