i have always went with 300 ish over peak torque as to where the convertor should flash, have gotten that advice from guys way smarter than me… and i have been happy with results.
My current heap has been 1.44 and only runs 10.70’s….not much head flow. Very happy with that. 3320 with me, soon adding weight with a new Dana..lol
I have used PTC forever, but have gotten some feedback from several guys i respect a lot recently about a guy named Jason who owns Quickdraw Convertors in Ohio. Very, very sharp.
He just redid mine for this new motor and its exactly how i wanted it…..
Doing my brothers right now, just did one for my buddies Gen 3 super stocker. Give him good info, he will make you a happy camper!
His track record is excellent