The basic component selection looks good.
For a more "street friendly" build a higher CR in the 9.25:1 range would be a little better; off-boost combustion efficiency is higher yielding better off boost performance, mannerisms, and economy, while still allowing you to run plenty of boost.
However 8.5:1 still isn't too bad, I would try to put the thinnest MLS head gaskets you can in there (assuming your deck surface is up to snuff for MLS gaskets) to get the CR as high as you can with those pistons. You might even want to consider shaving the head slightly.
Everything is pretty critical with a boosted buildup, but for blowthrough the carb and carb hat need extra attention. Find a good carb guy. Scott @ SD did my carb as well as a couple of others for a friend and they were all excellent right out of the box other than idle speed & idle mixture tweaks. There are several other guys with good reputations but I have had experience with Scott and would recommend him again.
The carb hat itself can really kill power if you use a poor hat (i.e. the one Procharger provides)-- the good ones are CSU, EV, and SDCE.
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
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