Toki designed engine = bad. Team infinity has Toki build up the engines for them. Take the OS
OR, if you are good with tuning and can handle a faster engine... sts has a .21 and a .28 that could meet your power demands.
.21
http://racernine.com/sts21.html
.28
http://racernine.com/sts28.html
Warning on the .28, its more potent than most .28's. She's got more grunt than RB's .28, need proof?
http://racernine.com/horsepower.html