hi there i'm for sydney australia ihave a350 vortec chev in a holden hq ute 1972 which i have built from scratch ihave it running on L.P.G straight it goes alright it has dyno 270 r.w.p.h want to get more out of her but people are laughing at L.P.G i want to provem wrong thincking of putting a side bolt vortec super charger on here am i doing the right thing rev to 5.500 and drops off