We'll I'm sorry to say that we do not & could not make an 11 inch stack for you. I also do not know of any company that makes stacks this large.

But I don't think your crazy & I wouldn't give up on the dream look around, ask around. With persistance you'll be able to find someone willing to customize these stacks for you & that's how trends in the street rod industry develop. I like the idea.

The tallest stack we make is for a IDF System at 6 1/2 inches. I would have to know what type of carburetion system your using to tell you exactly the heights we have available to you, but the 6 1/2 is our tallest.

If you were to get 11 inch stacks I'd be very interested to see your engine!