Straight Six Question Too

[Hair]

By looking at the price of parts, it seems that you can build a stronger small block for half of the price of a six... but a stout six would be cooler of course... everyone has a souped-up V8.

Does it do any good to add an aluminum intake and small 4 barrel Holley and a set of headers to an inline six if you don't do anything to the inside? Has anyone done this and does it run stronger?

When I hear of people "souping-up" inline six engines I never hear a horse power or torque rating being thrown around. What kind of horse power does a mild "hotrod" inline six make? How do they run?