Those dang vacuum caps, you need four new; shoot a bit of deep creep around the manifold joints to check for vacuum leaks there too. Your balance is likely out some but should be okay enough to get an idle happening, it's hard enough to move the adjuster screw when you mean to. And you probably have done fine tuning to do on the throttle cables...just take it a step at a time. Vacuum leaks first.

A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)