About 3 mo. ago I talked to a guy in N Carolina about my harmonic balencer (for my 292). He said they still race those engines down there as pro stock and dirt track. I wished I had wrote his number down. I seen in the "engine shop", a guy said that ajustable lifters were used on hydrolic engines(235's). Why would that be done. It would be a good way to crush a lifter, or bend a rod if not adjusted right. I've seen some 235's built up, they look cool, I think in a 41 - 46 1/2T, it would look real good. Those 6's look good all decked out.