Compression ratio estimates

I have a '74 318 Duster that we are working on right now. We are going to bore it .030 and use the Keith Black 167 pistons. I have a set of 302 casting swirl port heads that we will use after going with 1.88 1.60 valves. I am going to port match the heads to an RPM Air Gap and gasket match to the 1 5/8" headers. I am trying to decide what is the best way to get the highest compression ratio that is reasonable for 93 octane fuel. We have 93 everywhere here in Fl.
Question 1. If I just install the KB167s and just true up the block and install the 302 heads with no major shaving what is the expected compression ratio? I know there are variances but best estimates from those of you who had done this or similar would be great!
Question 2. Deck the block and use the 302s without shaving. Expected compression?
Question 3. Simply clean up block deck and shave the 302s ??? .020....030???? What would you expect? I don't however want to screw up the alignment for the intake manifold.

Any other suggestions? Combinations of the above would be appreciated. Also, Gasket suggestions with the above combo's. We may spray up to 100hp so keep that in mind on gasket suggestions...THANKS EVERYONE FOR ALL THE GREAT INPUT SO FAR!!! It has really been helpful!!