workinstiff

well guys here is the latest news on my bird, i changed all the plugs and the coolant sensor and it seemed to help but when me and my wife tried to take it for a drive it spit in my face, i had to slow down a bit when a car pulled out in front so i let off the gas and let it coast a sec and when tried to give it a little gas to maintain speed it stumbled and backfired so i just bowed my head and took her back home any more ideas???