Roy, your impressions are correct. Deve is blowing smoke as usual, so be careful what you "learn" from him. The correct coil for use with a Chevy 12 volt system will be a Delco-Remy, not some aftermarket piece of junk, and it will be marked "12V". It will need a ballast resistor for normal running, with a bypass circuit to apply full battery voltage during cranking. That's the way the vehicles were designed during the changeover from 6 to 12 volts, and it's still the best approach 50-something years later, regardless of all the pontificating by self-appointed "experts". The only notable change before the switch to HEI was a swap to a nickel-chrome resistance wire between the ignition switch and the coil in the mid-1960's to replace the ceramic-insulated wire-wound resistor used in the late 50's and early 60's.
Jerry
Edit: There are at least 50 of those "non-existent" Delco 12 volt coils on Ebay right now.
Jerry
