How to bend steel?

I can't believe it, all these replies and no.....bends steel with his bare hands...yet

MAPP gas will do nothing other than burn your hand. The bike managed to input enough force to bend the entire subframe assembly - I raced for years; bent subframes were part of the deal. The best way to straighten is to use something like a 6' length of 4" I-beam, chains and a porta-power.

You can't hold the bike securely enough to simply stick a lever in the bent bits and pry - you need to fasten a rigid beam to the steering head and rear of the subframe and apply pressure at the juncture of the frame and subframe. It's a dlow process that doesn't use brute force so much as the correct application of force.