Gas is real good fuel for economy but when you start trying to extract any real horsepower with it most people hit a wall and end up not happy. I have been involved with lpg for 15 years now and the sad stories ive heard and the money some have spent is unbellievable. The simple things is the place to start.Big service line from tank,Hi flow gas lock off,big converter,efficient mixer,good ignition system regraphed for lpg,cool air induction..you know the story,usual stuff. Gas likes a bit of comp(not to much) and there are split lobe camshafts more suited to lpg and the list goes on..now turbo...thats a different thing all together..let me know if you want to hear more or boring you to death...