gas tuned properly can have the same power goals if not a hair more than petroleum. Look at gasresearch guys here in melb. One benefit of gas would be NO EPA!!!! hehehehe I think the lpg is also of a high octane rating.

gas used to cos like 2 cents per/L a few years go and just like petrol has hiked up to 70ish cents. Its basically a by product they get from fuel production.

Gov needs to invest in natural gas i think, we have tonnes of it here, yet the gov pushes the info aside...

fuels all a big gov/corporate/usa scam.