Well for 350 hp you will need an lpg reducer that can give you 350 hp...
Mine is 200 hp max i think...
Any way lpg is low cost if to look at petrol. And the km per litter it runs is equals to petrol.
My car runs about 10 km on 1 litter of petrol and the same on lpg.
But lpg is much cheaper....
Sent From Oneplus 3 (Leon .R.)