I have a PT-61, but my times aren't great examples. I just found out today that I had my wastegate plumbing set up incorrectly (that damn orifice thing gets me every time) so no matter how many times I turned the wastegate rod in, the boost was stuck at 21-22 PSI.
Anyhow, at 21-22 PSI my best times to date are in my sig. 1/8th was 7.6 @ 93.
I've been goofing around with a combination of a "grainger" valve and a manual bleeder all day today. Now I have just a little too much boost - it won't go lower than 22 or so. It's cool for now since I have 100 octane in it, but I need to be able to crank it down a little. I think if I ditch the stock orifice/wye thing and replace it with an unrestricted wye I'd be in good shape.
Jim