Don't get me wrong. His method is the same GM used to get 1000+ hp out of the 2.2L, he bumps the power until something breaks. For what he does, he does great, but good luck putting the power to the ground, without 1) breaking the engine 2) breaking the unibody (even with a roll cage) or 3) breaking the non engine drivetrain.
For the unibody, even with a cage & all the trusses you can throw at it, 450 hp is about all it'll take without breaking all kinds of welds. I've even seen a break at the window frame with a NOTCHBACK that had a full cage. (Notchbacks have the strongest unibody).
If you're going full bore trailer queen, that's fine, but there aren't many 6ers wanting to do that.
Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17