Friend of mine has two TBIV ignition modules but we dont know What the timing curve is in them because they do not say. They are the type that look like a stereo amplifier.

Both of them look identical to the one in the picture but do have some different numbers on them

First one reads like this:
5B08
42792
390-7804-1

Second one reads like this:
6H08
102466
390-7804-1

If anybody can help identify these it would be great.
Trying to figure out how much advance is programmed in and what rpm it is fully advanced

MCM/MIE V8 305/350 cid (5.0L/5.7L) (Except MCM 320 EFI) With Thunderbolt IV and Rocker
Cover “A”
Module Part Number: 390-7804A 1, 390-7804A 3 or 15248A 1
Identification Mark: V8-24
Module Advance: 24°
Initial Timing: 8° BDTC
Total Advance: 32° @ 3700 RPM

Fits rocker cover “A” Held to cylinder head by fasteners around lip of cover.

Thank you for the quick response