Distributor setups for L78 or L72 engines?

[Chevy454]

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The car is just going to be a fun driver and it has a GM HEI distributor in it now. It starts right up and the plugs look great so I plan on keeping the HEI. I checked timing after work tonight and with the vacuum advance disconnected I had about 10-12 initial and 36-38 total timing. It seems to like these settings and idles around 625 to 650 rpms. My factory tach is reading high around 1050-1100 rpms but the multi-meter is reading the 625-650. It felt pretty good tonight doing a quick test drive so I'll probably leave it as is.

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I'm not a fan of the GM hei pieces...while they will work, *IMO* they look out of place, and believe it or not a good points system can work just as well. Anyway, when is your total timing in? And what compression & pistons you running?