I Think My Car Is Possesed!

[ss101504]

Hi Everyone. I Have A 1992 Chevrolet Caprice, With The 5 Liter Engine, And For About The Past Week, Everynow And Then When I Go To Accelerate, My Car Acts Like It Wants To Stall Out For About A Second, Than Runs Right. But Today Ive Had To Push My Car Once Cuz It Stalled, And Then Later It Started To, But Never Stalled, Or Ran Right. When I Noticed It The Second Time, I Popped The Hood, Pulled The Air Box, And Noticed A Strange Loud Hissing (Louder Than The Normal Sound It Makes) Coming From The Injectors. When It Goes To Do This Strange Thing, (Not Sure What To Call It) The Engine Will Rev, Than Almost Shut Down, And Will Repeat Over And Over. Pretty Much The Entire Ignition System Is About 6 Months Old, Along With The Fuel Filter. Also I Dont Know If It Is Connected To The Same Problem, But When I Get Her Up To About 45 MPH, It Sounds Like A Loud Rumble, But Runs Fine. Next Time Either Of These Problems Happen, Ill Get Video Of It, So Yall Can Get A Better Idea Of Whats Goin On. Any Help Yall Could Provide Would Be Greatly Appreciated.