Neal, It looks like you welded the assembly together. Can you get them off? The style of collector you used has a hole between the tubes where they enter the collector. If you welded it up , the pipes have to stay together. The original cars came with merge collectors. Burns Stainless and SPD both carry them in steel and stainless. They are very expensive 3-400 each depending on size and material. They are a work of art and very difficult to make. This allows each pipe to be attached individually.Sorry I caught this so late. I hope they work for you.
After closer inspection I see how they made the collector. But, can you get them off the engine?
[ March 18, 2003: Message edited by: J What? ]