Try checking for vaccum leaks. CIS is super sensitive to vaccum leaks. It also could be defribulator (small rectangle shaped thing, usually black or grey in color, two pin connector going into the side of it, located on the front of the fuel distributor, facing the front of the car.) This regulates fuel pressure between the upper and lower chambers of the fuel distributor, if it goes bad, you could have similar drivability issues as you are discribing. The fuel accumulator could also be bad, causing any residual pressure in the system to be non exsistant, which would give you starting issues. Just a few things that come to mind.