PF60's didn't come out with G200W's, only G180W. I think earlier G180W's may have come out with twin carbs, although I suspect all PF60 fitted G180W's were EFI. G200W's were all EFI too AFAIK, but early G180W's on some of the other Isuzu's (perhaps 117?) may have had carbs. Of course G161W were carby.
Well, that's my vague understanding anyway! Hope it helps.
_________________MY DRIFT PAGEThe projects/fleet:
TX sedan G180W turbo, TE sedan G180W NA/ITBs, TG sedan drift car (4ZD1T in the works), TD sedan grandpa-spec, TX coupe grip project (later), ’86 JR120 Piazza 4ZC1T, R31 tow car.