i have a 96 chevy s 10, i put new timing chain and gears, won't start

the reason you can't get it to start is probably because you aren't getting any spark at all, just had this problem on a different vehicle, but i will tell you everything needed to replace to guarantee a fix. replace the crankshaft position sensor, when it goes bad you won't get a spark at all, do that first, second replace the ignition control module and coil packs, then your vehicle should run, when you get it running you might invest in spark plugs and wires, these are not costly fixes, buy the crank pos sensor new, autozone charges like 25.00, buy the ign. cont. mod. and coil packs used, you can get them used for under 50.00, or if you are a big spender you can get them new for almost 200.00-250.00 not what i would do. then you know about spark plugs and wires, spend on those at your leisure, email me if you do this and let me know how it works for you. these are all the possibilities that it could be, the only other thing which i would replace last is the ecm, electronic computer system that runs your car, please do this last the fix is about 200.00 but don't mess with it if you don't have to., email is stiverslee@yahoo.com