just like it says, looking to spray the 300 pills on my 408 through an NOS big shot plate(carb style). which are the most commonly used parts that people are having the best luck with(compatability and such)?

 

Not sure who all makes a 2 step for the LSx platform...but any will work with nitrous.

For the progressive and wide band I would suggest the new NOS launcher and widebands

here is a thread on the Launcher....
https://ls1tech.com/forums/showthrea...ve#post8083247

It will integrate with the wideband and give you A/F ratio shut off and complete datalogging capability.

I am adding this to my car for the LTxShootout in April