I am revisiting this topic after going through my distributor to address historical erratic idle timing (
another thread). Engine is yet to run so just trying to make good guesses before I try again.
After this discussion in 2018, I somehow ended up with a unit marked B31. I cannot find any specs. Anyone know what this is and whether it makes sense?
Or do I need to replace it??
1970 350, CR likely 7.9? with 11 heads, Summit 2800, QJ, vacuum was 18" last time it ran. Will run ported vac.
Anyone know the specs for this AC Delco PN recommended by Sun Tuned?
Quote:
Originally Posted by Sun Tuned
Go get ya a delco 1973516 and be done with the stress and erector set theatrics.....
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After going through the available charts, I think my original unit was equivalent to a "B12" based on the specs Kenth provided. I don't think this is readily available, nor do I know that it it's a good choice.
Here's a comparison of specs from the chart that seem "close" to the original.
The original provided 20 degrees max, other options go to 16 max.
Any of these are probably OK for now but thought I'd ask again, given the B31 is a mystery..
Mike