im not 100% sure, as i have an ecotec but maybe remove the elbow including throttle body, u may be able to cut the 3 mount points on the elbow an get them rewelded so the elbo faces the drivers side.. cut and reweld or just weld a few nuts (or bolts, dont know whats mounted on what side) in the corresponding locations
this may be the easiest.. the other way would be leave the mount point n cut 1cm back and spin the elbow then reweld..
im a lil uncertain how the throttle body bolts up, but u should be able to spin it 180, so the linkages are still at the top..
make sense?
pic curtiousy from greenfoam
shows the mount points