When I used to live in I-8 I usually got 180-190 and sometime 200+.
Always keep the air-filter clean, timely oil change (Now using Petromin Ultra 7 20-50), tire pressure 40 psi (yes 40 Psi for Dunlop Eco 195-70-14 for which max pressure is 44 Psi).
I have got original Landi advancer and emulator installed which were 7K rs more than the other options available in market at that time (March 08).
Drive on light foot and switch off engine if signal stop is more than 1minute.