anyone know the gap for an 86 B2000. I have been trying to find out and can not find it anywhere!

0.32", they are usually the right gap when you purchase them.

It alway pays to check the plug & the ground for alignment over the plug tip. This is especially true when used plugs other than NGKs.

I think the spec is actually .032" - .038" as long as they are all the same. If you have ignition upgrades this can be increased slightly.