Haven't looked at one of them, but what I have looked at with a lot of interest is the new front driven distributor setup!!! Uses a dry belt drive for the cam/crank, then another dry belt for the distributor which is mounted up front on the engine where it belongs!!! Gets rid of all the harmonics and "timing rattle" with the regular chebbie rear dist..... Got to be a dead on super accurate setup!!!!!!!!!!!!!!