I do disagree but no need in me arguing. I just know what has happened with my own customer's cars and the chassis dyno is off by a mile compared to drag strip performances. In those examples though the convertors are old school and were high stall.
I akso know of a mild warmed over 350 in a Camaro with a Vette Convertor that did the same exact number to the rear wheels as his friend's raunchy 421 SB with a 4,500 convertor. The 350 was much slower on the track but on the chassis dyno they were both the same. those guys worked at the dyno shop too.
Ed