SHELBY GT 350 Member
Joined: Sep 2010
Location: see user name
There was a guy over on Mustangforums a couple years ago that hit like 397rw with a n/a 2V but it wasn't cheap or easy, and I got no idea how streetable. TF heads, big cams, lots of compression (12+), forged everything, bored and stroked. He had to have had about $7K just in parts, he did all the machine work and assembly himself.
So yes it is possible. Not very practical though.
2001 GT Convertible
All the usual bolt-on's /200 I6, C4
And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4