with 8.3 DCR you'll be lucky to run 30* maybe less w/o ping / detonation
here's a tutorial on the workings of the distributor
http://www.reincarnation-autom...tructions_index.html
don't miss the 2nd page! notice in George's link you posted the 10L slot, it's discussed in my link here too. if you don't have the 10L slot or modified equivalent your total advance will limit your initial adjustment. you can also close the slot further past the 10L width and make your own 8L slot, or 6L slot etc
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