OK here's an update. Thanks for all the suggestions guys. The new fuel pump did not change anything. The air filter is an Edlebrock supplied with the air cleaner. The fuel filter is a universal Fram paper element. Leaks in hoses and intake manny checked. The vacuum at idle is about 18 psi..when I rev it the vacuum gauge is steady, no jumping. When I drive it under load there is a ticking sound when it misses. Valves or electric ground out ? I finally through in the towel and took it to a mechanic I've been using for years and I trust him. See what he has to say.