SLP ported throttle body

from SLP site- "These LS1 throttle bodies are precision CNC ported for maximum flow (56 cfm more than stock!) and feature a modified blade for reduced inlet-path restriction at WOT. Polished to a show-quality finish and engraved with the SLP logo, they make an ideal finishing touch for any stock or modified LS1 engine."
I dont know much about air flow on the LS1 throttle bodys, but 56CFM more doesn't sound like alot more...what are the other throttle bodys for our cars flowing?


