Adding 22 cubes,,, power increase? 528 to 550

Got a call from R & R in Spring Lake Park. Mn where my parts are. I had the heads CC'd again due to changing valve sizes, twice over the life of the heads. They were supposed to be 62cc when i bought them from Indy years ago. Now they are 67? I went from 2.19 intakes to 2.25, then later i went to a 2.30 intakes but to do it the exhaust got cut to 1.78 from 1.81 and was sunk a bit. The flow on the intakes went to 399 at .800 from 379 but i never saw any performance gain.
With a .100 flat dome about offsetting the valve pocket volume, i figure compression at .045 quench will be 15.01 to1. So i haven't ever had the compression i thought i did. I was figuring it on 62 cc not 67 that it is. But it all worked out for 550 cubes.
The block had some cap walk and alignment issues. I guess stuff moves around over a period of 18 years. I hope it doesn't take a lot to square that away. It will be a while before i am able to get working on this motor. Maybe mid May before it will make noise.