Between 2 race cars, one of which was just striped down to the shell to be restored/painted, and a street car thats getting a turbo kit and the works in the suspension dept. I would have a list 3 pages long...
Call up your local chassis shop, most of the time you can find some that will do through the floor subframes for around $300, and by the time you get the mm's pay shipping then if you have to pay someone to put them on...
If your going to go with a dart block might as well go on a punch it out to a 427-454.
If its just s street motor might as well save your money put it in a late model block get a decent scat or eagle 4340.
on my junk street motor with a b cam I made more overall and peak with the typhoon than the cobra... but thats just me. This was back to back runs, and no I dont have the graphs scaned.