275 60 Mt pros, stock gears, right at 6000 according to the log...steel crank now, spinning it doesn't scare me, peak power is around 5800 but it only loses about 8 hp at 6000...never pulled it past that with the stock short block...if he can get it for cheap I say it's a good working converter...if he gets to the point that a few hundredths matter he can decide if he needs to spend new money