Hey Guys! New to Honda Tech but I've been searching the web for a way I can swap my D17 engine to run V-tec. What would I need? I know I'd probably need a stronger and V-tech head as well as V-tec cams and new exhaust manifold. My engine runs on CNG NOT your typical gasoline, meaning I'm using actual GAS to run my car not liquid. This results in my stock compression ratio being about 12.5:1, a lot higher than the normal gas 9.5:1. My car also doesn't use an auto or manual trans but a CVT, would this cause problems? Thank you for your replies! All help is appreciated!