turbo is the only way to go, does'nt rob power, and no bottles to refill. Heres how to do it for cheap on a 5.0 its ghetto but if you changed a few things around and did it without a flux core welder you could come up with a good looking product in the end that would be very efficent.
http://www.homemadeturbo.com/turbo_projects/rs_mustang/ I beleive he has been driving on this setup for nearly a year now. For oil lines I would go with
www.stealthmodeperformance.com its says for honda/acura but the lines are pretty much universal