160. Stock was 128, I ordered 140, 150 and 160 and installed the biggest ones right away to find the result quite satisfying. Fuel consumption around town has dropped to around 11 l/100km from initial 17 after some tuning. Chased down some air leaks in the vac tank and after some fiddling with the idle screws managed to get a nice, even idle at around 800-1000 rpm under average load.