http://www.crankshaftcoalition.com/w...ance_Specs.pdf
I know ive seen lists like these before. Some of those "VC" numbers are still available. Just as an experiment I might try one that looks like it will fit my needs, rather than an adjustable unit.
https://www.napaonline.com/en/p/ECHVC1827 like this one, which is listed as starting at a low signal and only adding 5* at the distributor. 10-12 at the crank is likely where I want to be.
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1967 Firebird 462 580hp/590ftlbs
1962 Pontiac Catalina Safari Swapped in Turd of an Olds 455
Owner/Creator Catfish Motorsports
https://www.youtube.com/@CatfishMotorsports