Yea man i already saw the video that thing sounds pretty damn good! The kia fe3 engine block is almost identical to the b-series bolt just some of the internals are beefed up a little...
he probably dosen't have much of an exhaust on there.. would be my guess. But it could also be the video/recording. Ever videotaped someone dragging.. it sounds HORRIBLE.. like everyone is dragging gas tanks and plastic valances.