I'm old school-tune up for me was points & condenser. I need to tune up my 1997 on 1997 Chevrolet Suburban 1500

Chevy suburban. Plugs, wires, air & gas filters and what else? Is there a distributer cap and rotor ? Car has been running perfect for past 6 years. Haven't changed anything. Also where is gas filter? Inline on frame or on carb.
Thank you.

Asked by for the 1997 Chevrolet Suburban 1500
f/f in carb and poss in line if added,cap, rotor and poss ignition module