Sounds like a 32/36 DGV and ifso then there are 3 sets of jets
(primary/secondary main
.40mm/1.35mm,
primary/secondary idle
.55mm/.50mm
primary/secondary air correction
1.65mm/1.60mm)
IMO the best place to start is with a clean rebuild then go from the base setting of 1 turn in on the idle and 2 turns out on the mixture. then adjust mixture by ear. you'll be looking for it to just start sounding rough then go back till the idle smooths and another 1/4-1/2 turn.