[TeamRush]

Well, I actually answered your questions on one of the other forums you posted on...

For the rest of the readers,
The early Delco breaker points distributor use the same size shaft as the later Delco HEI distributors,
SO,
As I've stated so many times before,
The Delco I-6 and V-8 Breaker Points distirbutor gears WILL FIT an GM HEI.

The fact that it fit your 'Dragon Fire' version is a fluke since many of the HEI Clones have under, or over sized shafts.
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As we have established before,
The AMC Jeep/Motorcraft V-8 Gear will fit a GM HEI shaft also...
When this was just a 'Junk Yard' upgrade, many people just used the V-8 gear on the GM HEI distributor for the I-6 engines and it worked fine...

The ONLY gears that won't interchange with a GM/Delco HEI distributor with standard shaft is the AMC Jeep/Motorcraft I-6 Gears.
An AMC factory I-6 gear from '78 to '86 WILL NOT transfer directly onto a GM HEI distributor.