to a certain extent yes allthough i am looking into developing liquid injection kits, and that would change things as the problem with vapour injection systems is that you start to run out of injector duration over 7-8000revs depending on the engine used. Another advantage with liquid injection is that you get a chargecooling effect when the liquid lpg leaves the injectors i.e it tries to freeze! which could reduce cgarge temperatures by 100deg celcius!
The only prob is the solenoids in the injector bodies creates heat which in turn causes the lpg to boil, not good!!!!