My son has a 2000 Honda Civic and it started running rough then stalled and wont restart. I have tried the following and can not seem to solve the problem. Anyone out there have the same problem and can offer any suggestions?

replaced cap and rotor
checked compression (between 150 and 180 on all 4 cyl)
checked timing belt for break or jumped time
squirt some starting fluid in throttle body
poured some fuel in cylinders
checked for spark on all cylinders (yes)

it was suggested to me to replace the distributor as this is a common problem, but my thinking is that it is either sparking or not. doesn't seem like there would be middle ground where it just wouldn't get enough and this is a pricey part if I am not sure.

can anyone help me?