Wheres the fine line of street/drag car Jerry? Shep's car was a street car for the longest time when it was an 8 sec. car. Most DSM'ers aim for 500+ daily driven. IF they aren't even close to that, they will be one day. A fully built 2.3 stroker has plenty of potential to be a drag car or a street car or both. My main point is, when ever you build a motor, you're supposed to balance the rotating assembly anyway right? The harmonic balancer keeps everything in spec, not the balance shafts. The balance shafts were clearly to get rid of unwanted vibrations and that was the ONLY reason. The balance shafts had nothing to do with balance of the bottom end.