440 piston compresson height question

this may be a stupid question but, here goes.....
I have a 440 with KB 1276 pistons in it now. The "compression distance" is listed at 1.912 in.
If I were to replace those with KB 1263 pistons (listed comp dist. on those is 1.969 in.) I am assuming that would bump my compression up a bit.. My question is, would the bit taller pistons be a noticeable change If I do nothing else to my engine? (I have no idea what cam is in it, it came out of a motorhome originally, then was supposedly in a monster jeep, and now in my Barracuda)

engine is .030 over, I did a gasket match and ported the heads a bit, edelbrock performer intake, not much else done to it though.