Considering a stock SS is about 400 at the crank, he's got lots of mods done. He's boosting obviously, so I'm fairly certain the bottom end is forged. Throw in the usual supports for boost, like rods, pistons, heads, intake, fuel supply upgrades, turbo/supercharger, intercooler. Then you have to have the driveline upgraded to support that. He has a lot of stuff done I'd say.