5.7 0r 6.1 with msd hemi 6 and carb

I think the 50 degrees he was referring to was during cruise, not WOT, but I might have read it wrong. I know my max WOT setting is still down low around 20, but on light cruise it pulls an extra 16-18 or something for a total of just around 40. I'd have to look at the graph again (I'm still just using the stock MSD one, haven't felt like trying to change it since I got the EFI running).