It is on my old 77 Trans am ...carbed, 455cid old school ride.
Nothing special, high 11, low 12 sec @117 to 120 mph street car on white letter street tires.
Oh no I don't have any specs other gsm they advertised more power out the MSD when I purchased it. It seems to work ok the rev limitor works nice very smooth and accurate. I like the dials rather the chips too. Sorry I'm not more help.