Yes and yes;the post was edited while you were typing.
But you can probably run up to 360hp in the 8.0 factory holes, on 87.
I have always wanted to run a teener on dual,staged turbos, a little one up front,to get things rolling and a bigger take-no-prisoners kindof guy remote-mounted,out back under the rear seat. I would set it up to run on 87 with the little guy for as long as possible, maybe to 330hp. I would plumb the primaries with 87. I would plumb the secondary bowl with 91. I would try to run an anti-detonant when on boost that leads to detonation;eg water injection. I think I would call it done at 425/450 hp. I would try to not run an intercooler. Our igloos don't melt until about late June,lol. That's my dream.
If you look on the chart above, you will see that to make 360 hp is about 5 psi, and with 8.0 Scr, this makes an equivalent to 10.7Scr, which I run all the time on 87 with aluminum heads. That's my dream.
