keith blacks

well, i decided to add new pistons while im at it. I think keith black 107s

going into

1972 360
elelbrock air gap intake
holley 650 vac secondary
headers
comp cams XE274H K-kit cam, lifters, springs etc....
2.5 dual exhaust with H
stock 1.80 1.60 J heads

here are the questions
i called my engine builder and he said i might not be happy with the keith blacks due to the higher compression. i want around 10:1 with these
I should have no problem running premium pump gas right? any problems on streetability? I will most likely drive this quite a bit. What HP/TQ/1/4 mile can i expect and what will i gain by pocket porting the heads? any other pistons to consider? any suggestions?

1974 duster
727 tranny
b&m transpak
2400 b&m stall