Fast 4150 Throtle Body
 

I wanted to know if anyone has used or seen this throttle body in a race setup? I am building a 13B Cosmo turbo fuel injection and looking around in fuel injection system to get. I want 550RWHP.

Fast 4150 Throttle Body Alum Complete 4V 304150 EZ EFI Injectors Sensors Rails | eBay

thanks for your time and suggestions...