Don't be offended, i'm not saying you're misleading. The information is misleading because,
1. Those are turbocharged not supercharged.
2. The power figure means that each 4A is producing roughly 400hp. THATS formula atlantic type stuff mate. Being a regular on club4Age you should know that even with modded internals and forced induction, the 16V isgood for 350Hp max and those don't look like high performance engines.
3. And even if they were, the suspension and tire setup doesn't seem like its gonna handle 800hp.
Like i said, its not a personal attack, just wanted to know the link where you sourced out this info from.