You have ignition problems, bad plug wires, coil, spark plugs wires etc. Either your parts are old and worn or you used cheap imported parts. If so, buy AC Delco.
I have seen people spray all the wiring with product like WD40 or anything that states on the can dries wet electrical systems. What is does is form a temporary barrier and allows the electricity to flow. Will not last long buy a temp fix. Friend had a Ford that no matter what, would not start when damp out. One day a fella took a can of WD40, sprayed all the wires under the hood and it started right up.
