360 timing

it sounds like that more all the time. How can i check for sure the áctual compression of this motor? What should it read on individual cylinders? The paper shows 174 hp 362tq at 2500 rpm it climbs from there to 537 hp 462tq at 6100 rpm then 512 hp 413tq at 6550 rpm. It has compression ratio at 13:1
dynamic compression ratio 9.03