Okay, I'm fairly new to the race scene and I'm still learning, but does anybody know a good amount about propane injection? I heard about some super benefits on how you cna literally run racing fuel with premium gas and how it is better for your car because it burns cleaner. I have no idea where I heard this if it's wrong, but what's everyone's opinion on propane injection... seems popular in Japan, but highly uncommon in the US. I've only seen it in 3000GT VR-4s really. Worth it? or not worth it??