Yeah, you can. The only thing about an angled mount is that ir raises the engine up. Ideally the crank and the axle are the same height, the further up the crank is from the axle, the more bind you get in the chain when the kart flexes. Theoretically it robs a little power coming out of corners, or you’ll be a little more likely to throw a chain, but realistically it’s not a big deal for a KA or X30