No worries on that with a single S400 you will be lucky to find the limits of the block. A 505 really should have twins unless you want 800 hp at 4800 RPM.

11.67@118 1.88 60' with only 7-8 lbs of boost. Turbocharged, megasquirted, 407 BB, 440 source heads, roller cam, 9:1 comp. http://s292.photobucket.com/albums/mm14/beansgracie