kevsev7k

I was driving my 93 Impreza and when I shifted gears the car jerked as though it wasnt getting enough gas. It felt like someone first learning stick was driving. I stopped the car and waited, then started again heading for home. I was at a stop light, put in first and started going when the car died and I coasted onto the shoulder. I tried starting the car and smelled a burning rubber odor along with a small amount of smoke coming from under the hood. I got a tow truck to take me home and looked on message boards for a solution. From what I could tell it seemed to be the fuel pump. Got it replaced with no trouble and tried starting. Would not turn over. Checking spark plugs and found they werent firing. Opened the timing belt casing on the left and found it to be absent. Opened casing on right and timing belts appears to be there. My question is, whats the probability that anything else was damaged and if I only change the timing belt, will I be able to drive the car? I've heard that the pistons and other components could have bent, which tends to be a more costly job. Any ideas or suggestions?