Fueling & Injection - f.a.s.t. Fuel Rails

Is it safe to put the ls1 Fast Fuel rails on my stock ls1? will i need to do anything else with the install? also will i see any kind of improvement? not sure if ill see mad gains of HP of any sort, but just an overall good performance? Thanks! ^^

You'll never see a "gain" from a fuel upgrade, unless its giving you power that was left on the table before because your fuel system wasn't up to par. A fuel up grade will allow you to make more power, but you will have to add more air to go with the added fuel.

This will help you:

http://ls1tech.com/forums/new-ls1-owners-newbie-tech/361959-so-you-wanna-fast.html