Doing some minor research, as far as fill-ups, it is the equivilent of 104 octane but only costs a bit more than 93 octane equally--however, alternative fuels such as propane let you take off significant tax breaks.

Not too much to it supposedly...drop the stock gas tank in favor of a propane one, have a proportioning valve to change the stored liquid propane to gaseous before going into the combustion chamber. Thinking about this from a performance point of view, I think I could actually rebuild my engine with higher compression pistons and still run a decent amount of boost.

Cold starting isnt a problem with it, gas doesnt go bad over time (unlike the shit I have in my Supra right now, which is why it doesnt start). Also "automatically compensates for altitude adjusments".

Still looking very much into it and have alot to learn about it. What is everyone's opinion and thoughts?