Originally Posted by BigJared

Well I finally got time to work on it. I rewired the injector harness on the engine.
because of the differences of the old firing order versus the new H.O. firing order. The injectors fire in batches that follow the firing order. Because of this there was puddling of fuel or something causing the single fuel injector to see a lean condition and telling the computer to send more fuel.

Now all I have left is the "surging" at idle.

Thanks to you all.