Stalls and squealing sounds rough idles rough

What is your question?

Stalls when in reverse or turning when air in use. Idles high,:rough drive only at times more smooth drive only happens once In awhile like fuel isn't entering fast enough . Oil in air filter sometimes..No oil leaking from under car any nor any other fluids leaking under car . replaced and sealed hoses and gaskets and intake hose taped. All new tires less than 3000 miles on tires.new drums and front pads . Squeeking when braking or sounds like it but brake pads are new. . Caprice classic 1992 5.0 V8 Corvette engine

What makes this problem better or worse?

When starting up turning car or backing up stall but nothing else is wrong except minor paint fix, no radio and plastic top of glove box broke . Still comfy still drives great qith

How long has your 1992 Chevrolet Caprice had this problem?

16 months