What is max post turbo temps for on 870 demandated or not demandated running down the road. Or in a hard pull.
Typically u don't wanna be over 1100 for much longer than a minute or two, with a cool down period after that as well. 900-1000 on an average sustained full hard pull is kinda where you wanna be. Too hot or too cold and something isn't right.
And it never hurts to drop a gear to help reduce the temp while in a hard pull.