Any time you are increasing your hp by 75-100 hp you start to run some risks. You can always run less than that with this kit. Anywhere from 5 to 170 hp. There are ways to minimize the risks however. Do a search on Venom. Lots of info out there. The nice thing about this kit is that it is safer than a Zex kit.
I paid $1400 for the kit last fall plus $280 for an extra bottle. I'll also throw in a bottle warmer, $150. I purchased a new wiring harness from Venom this week, $140. It also has a new valve. With these new parts there is little difference between mine and new. I'm asking $1200, I'm flexible on the price though. Plus if you?re local and pick the kit up, both of the bottles are still full!