I am running an A1 converter. The stall speed was set up to be 5800 rpm when it was behind a 406 sbc making approximately 625 hp. My new motor is a 434 sbc making approximately 775 hp. Would this make the stall speed 6000 to 6200 rpm? Or does the converter need to be reset? It is in the same car at the same weight. I am going to send the converter to be freshened and was just wondering if I should have them reset the stall to my new combo.