What else would I need to run propane?

[T.R.P.]

I plan on getting the following:
head studs
egr delete kit
4 inch stack
sct x3 with custom tunes
and gauges

I want to run faster though. What else would I need to be safe for propane?

And also, any idea on what my truck may run with those mods? I will eventually buy a set of stock rims with nittos and run it in 4 wheel drive for the track.

Also, what about running the truck down the track w/o and air filter in it? But only down the track. I see alot of turbo cars doing this that run over 2000hp.