I've run Continental for as long as I've racing. In fact I've only had one racing convertor, ever. It's an 8" that I bought in '95. Initially it was set up for my 63 Nova with a 406 and 5000 stall. I had it freshened and restalled to 5500 when I bought my FED, then again to 5800 when I went with a big roller. One more time when I installed the 522RM in my Vette roadster, still at 5800. I"m sending it in again this winter to up the stall a bit more. Kris has always nailed the stall I wanted on the first try with 5-7% slippage.
Johnny