Pulling my hair out

I thought I had my off idle woes fixed, I was wrong. Dammit!

I have a 1406 on my 318, and for whatever reason if I hit the gas from a stop, it'll sputter for a second and stall out. If I hit the gas from a 2 mph roll, it'll go a little roughly, but then catch and fly. If I'm going faster than 10 mph and hit it, it goes like a bat out of hell.

We re-jetted it, changed the rods and cleaned it all out. I tried unhooking the vacuum advance, that helped for a day and now its back where it was.

Ideas? We spent a few hours on it and we have no idea what the problem is now.