I have come a cross a company called "Ecotrons" that produce EFI and Turbo kits for small engines. They offer A Multiport Fuel injection kit with a Turbo charger and a custom tunable fuel mapping computer with a built in rev limiter that is specifically built for the Briggs and Stratton Vanguard Engines. the Complete kit for the EFI and Turbo costs $1600. I understand I will have to build the engine with a lower compression ratio and performance internals and head studs to handle the boost pressure and remain reliable on pump gas. does anyone have experience with this company and their products or have done a similar modification? with a low gear ration and high rpm capability spooling up tis turbo and producing tons of power on the trails should make for a pretty potent combination. I'm not looking to make an Argo out run a RZR; I just want to be able to drag one backwards up hill if they challenge me to a pull.