Well, just to clear the air you absolutely can install an FE with Hooker Headers and the trans. It takes a LOT of angle to get it in, and the ass off the car needs to be up in the air. I wrapped the collectors with towels and covered the shock towers and core support with packing blankets.
Getting it in as one piece saved me at least three hours of hard work.
It didn't seem possible, but it is. I owe everyone who I called out an apology.
-Keith