We are running the WC engine in truggy. I think the 7 port is a very nice fit to the truggy. I can't even tell you how happy I am with the King edition engine (and not because the name on it ). We put these engines in at Nitro Challenge (Feb) and have been running the snot out of them since then. It's like the energizer bunny, especially the buggy engine! Even when I switch and decide to test something, we go back to the NC engine. We have pumped so much fuel through that thing in the most unfriendly and heinous manner, and it still runs like a clock. Just amazing the durability of the engine. I know it sounds like the "sponsored driver gushing about the company products", but I have to tell someone. I'm just so pleased and impressed, especially considering Cody's name is associated with it.